113121003431 has 8 divisors (see below), whose sum is σ = 118044781920. Its totient is φ = 108197681152.

The previous prime is 113121003421. The next prime is 113121003461. The reversal of 113121003431 is 134300121311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113121003431 - 2¹⁸ = 113120741287 is a prime.

It is a super-2 number, since 2×113121003431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113121003421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452615 + ... + 656583.

It is an arithmetic number, because the mean of its divisors is an integer number (14755597740).

Almost surely, 2^113121003431 is an apocalyptic number.

113121003431 is a deficient number, since it is larger than the sum of its proper divisors (4923778489).

113121003431 is a wasteful number, since it uses less digits than its factorization.

113121003431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228105.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113121003431 its reverse (134300121311), we get a palindrome (247421124742).

The spelling of 113121003431 in words is "one hundred thirteen billion, one hundred twenty-one million, three thousand, four hundred thirty-one".