1121002431 has 16 divisors (see below), whose sum is σ = 1537061088. Its totient is φ = 726192000.

The previous prime is 1121002427. The next prime is 1121002433. The reversal of 1121002431 is 1342001211.

It is not a de Polignac number, because 1121002431 - 2² = 1121002427 is a prime.

It is a super-2 number, since 2×1121002431² = 2513292900615819522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121002431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121002433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84981 + ... + 97281.

It is an arithmetic number, because the mean of its divisors is an integer number (96066318).

Almost surely, 2^1121002431 is an apocalyptic number.

1121002431 is a deficient number, since it is larger than the sum of its proper divisors (416058657).

1121002431 is a wasteful number, since it uses less digits than its factorization.

1121002431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13162.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1121002431 is about 33481.3743893527. The cubic root of 1121002431 is about 1038.8085563773.

Adding to 1121002431 its reverse (1342001211), we get a palindrome (2463003642).

The spelling of 1121002431 in words is "one billion, one hundred twenty-one million, two thousand, four hundred thirty-one".