13351031311031 has 4 divisors (see below), whose sum is σ = 13351445547072. Its totient is φ = 13350617074992.

The previous prime is 13351031310977. The next prime is 13351031311043. The reversal of 13351031311031 is 13011313015331.

13351031311031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13351031311031 is a prime.

It is a super-2 number, since 2×13351031311031² (a number of 27 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 (13351031311091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207069671 + ... + 207134136.

It is an arithmetic number, because the mean of its divisors is an integer number (3337861386768).

Almost surely, 2^{13351031311031} is an apocalyptic number.

13351031311031 is a deficient number, since it is larger than the sum of its proper divisors (414236041).

13351031311031 is an equidigital number, since it uses as much as digits as its factorization.

13351031311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414236040.

The product of its (nonzero) digits is 1215, while the sum is 26.

Adding to 13351031311031 its reverse (13011313015331), we get a palindrome (26362344326362).

The spelling of 13351031311031 in words is "thirteen trillion, three hundred fifty-one billion, thirty-one million, three hundred eleven thousand, thirty-one".