31355403113 has 8 divisors (see below), whose sum is σ = 32509857600. Its totient is φ = 30205830928.

The previous prime is 31355403071. The next prime is 31355403119. The reversal of 31355403113 is 31130455313.

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 31355403113 - 2¹² = 31355399017 is a prime.

It is a super-2 number, since 2×31355403113² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31355403119) 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, 1207493 + ... + 1233186.

It is an arithmetic number, because the mean of its divisors is an integer number (4063732200).

Almost surely, 2^31355403113 is an apocalyptic number.

It is an amenable number.

31355403113 is a deficient number, since it is larger than the sum of its proper divisors (1154454487).

31355403113 is a wasteful number, since it uses less digits than its factorization.

31355403113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441151.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 31355403113 its reverse (31130455313), we get a palindrome (62485858426).

The spelling of 31355403113 in words is "thirty-one billion, three hundred fifty-five million, four hundred three thousand, one hundred thirteen".