1120406531 has 4 divisors (see below), whose sum is σ = 1130685600. Its totient is φ = 1110127464.

The previous prime is 1120406527. The next prime is 1120406537. The reversal of 1120406531 is 1356040211.

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 1120406531 - 2² = 1120406527 is a prime.

It is a super-2 number, since 2×1120406531² = 2510621589414907922, 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 = 1120406497 and 1120406506.

It is not an unprimeable number, because it can be changed into a prime (1120406537) 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, 5139371 + ... + 5139588.

It is an arithmetic number, because the mean of its divisors is an integer number (282671400).

Almost surely, 2^1120406531 is an apocalyptic number.

1120406531 is a deficient number, since it is larger than the sum of its proper divisors (10279069).

1120406531 is a wasteful number, since it uses less digits than its factorization.

1120406531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10279068.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1120406531 is about 33472.4742288347. The cubic root of 1120406531 is about 1038.6244545648.

Adding to 1120406531 its reverse (1356040211), we get a palindrome (2476446742).

The spelling of 1120406531 in words is "one billion, one hundred twenty million, four hundred six thousand, five hundred thirty-one".