1113617431 has 2 divisors, whose sum is σ = 1113617432. Its totient is φ = 1113617430.

The previous prime is 1113617423. The next prime is 1113617471. The reversal of 1113617431 is 1347163111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113617431 - 2³ = 1113617423 is a prime.

It is a super-2 number, since 2×1113617431² = 2480287565254079522, 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 1113617431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113617411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556808715 + 556808716.

It is an arithmetic number, because the mean of its divisors is an integer number (556808716).

Almost surely, 2^1113617431 is an apocalyptic number.

1113617431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113617431 is an equidigital number, since it uses as much as digits as its factorization.

1113617431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 1113617431 is about 33370.9069550110. The cubic root of 1113617431 is about 1036.5223556915.

The spelling of 1113617431 in words is "one billion, one hundred thirteen million, six hundred seventeen thousand, four hundred thirty-one".