1042220131 has 4 divisors (see below), whose sum is σ = 1051443432. Its totient is φ = 1032996832.

The previous prime is 1042220117. The next prime is 1042220209. The reversal of 1042220131 is 1310222401.

1042220131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310222401 = 109 ⋅12020389.

It is a cyclic number.

It is not a de Polignac number, because 1042220131 - 2⁵ = 1042220099 is a prime.

It is a super-2 number, since 2×1042220131² = 2172445602923314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042220731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4611481 + ... + 4611706.

It is an arithmetic number, because the mean of its divisors is an integer number (262860858).

Almost surely, 2^1042220131 is an apocalyptic number.

1042220131 is a deficient number, since it is larger than the sum of its proper divisors (9223301).

1042220131 is an equidigital number, since it uses as much as digits as its factorization.

1042220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223300.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1042220131 is about 32283.4343123528. The cubic root of 1042220131 is about 1013.8798358410.

Adding to 1042220131 its reverse (1310222401), we get a palindrome (2352442532).

The spelling of 1042220131 in words is "one billion, forty-two million, two hundred twenty thousand, one hundred thirty-one".