1121312402 has 16 divisors (see below), whose sum is σ = 1950941760. Its totient is φ = 473389488.

The previous prime is 1121312393. The next prime is 1121312407. The reversal of 1121312402 is 2042131211.

It is not an unprimeable number, because it can be changed into a prime (1121312407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596777 + ... + 598652.

It is an arithmetic number, because the mean of its divisors is an integer number (121933860).

Almost surely, 2^1121312402 is an apocalyptic number.

1121312402 is a deficient number, since it is larger than the sum of its proper divisors (829629358).

1121312402 is a wasteful number, since it uses less digits than its factorization.

1121312402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195505.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1121312402 is about 33486.0030759122. The cubic root of 1121312402 is about 1038.9042953468.

Adding to 1121312402 its reverse (2042131211), we get a palindrome (3163443613).

The spelling of 1121312402 in words is "one billion, one hundred twenty-one million, three hundred twelve thousand, four hundred two".