102013312111331 has 4 divisors (see below), whose sum is σ = 104501441675064. Its totient is φ = 99525182547600.

The previous prime is 102013312111279. The next prime is 102013312111369. The reversal of 102013312111331 is 133111213310201.

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-102013312111331 is a prime.

It is a super-2 number, since 2×102013312111331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102013312111297 and 102013312111306.

It is not an unprimeable number, because it can be changed into a prime (102015312111331) 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, 1244064781805 + ... + 1244064781886.

It is an arithmetic number, because the mean of its divisors is an integer number (26125360418766).

Almost surely, 2^{102013312111331} is an apocalyptic number.

102013312111331 is a deficient number, since it is larger than the sum of its proper divisors (2488129563733).

102013312111331 is an equidigital number, since it uses as much as digits as its factorization.

102013312111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488129563732.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 102013312111331 its reverse (133111213310201), we get a palindrome (235124525421532).

The spelling of 102013312111331 in words is "one hundred two trillion, thirteen billion, three hundred twelve million, one hundred eleven thousand, three hundred thirty-one".