1121141431 has 4 divisors (see below), whose sum is σ = 1144995552. Its totient is φ = 1097287312.

The previous prime is 1121141419. The next prime is 1121141453. The reversal of 1121141431 is 1341411211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121141431 - 2⁹ = 1121140919 is a prime.

It is a super-2 number, since 2×1121141431² = 2513916216609455522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121141399 and 1121141408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121141401) 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, 11926990 + ... + 11927083.

It is an arithmetic number, because the mean of its divisors is an integer number (286248888).

Almost surely, 2^1121141431 is an apocalyptic number.

1121141431 is a deficient number, since it is larger than the sum of its proper divisors (23854121).

1121141431 is an equidigital number, since it uses as much as digits as its factorization.

1121141431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23854120.

The product of its digits is 96, while the sum is 19.

The square root of 1121141431 is about 33483.4501059852. The cubic root of 1121141431 is about 1038.8514906944.

Adding to 1121141431 its reverse (1341411211), we get a palindrome (2462552642).

The spelling of 1121141431 in words is "one billion, one hundred twenty-one million, one hundred forty-one thousand, four hundred thirty-one".