102031313313 has 4 divisors (see below), whose sum is σ = 136041751088. Its totient is φ = 68020875540.

The previous prime is 102031313249. The next prime is 102031313333. The reversal of 102031313313 is 313313130201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 102031313313 - 2⁶ = 102031313249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102031313313.

It is not an unprimeable number, because it can be changed into a prime (102031313333) 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, 17005218883 + ... + 17005218888.

It is an arithmetic number, because the mean of its divisors is an integer number (34010437772).

Almost surely, 2^102031313313 is an apocalyptic number.

It is an amenable number.

102031313313 is a deficient number, since it is larger than the sum of its proper divisors (34010437775).

102031313313 is an equidigital number, since it uses as much as digits as its factorization.

102031313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34010437774.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 102031313313 its reverse (313313130201), we get a palindrome (415344443514).

The spelling of 102031313313 in words is "one hundred two billion, thirty-one million, three hundred thirteen thousand, three hundred thirteen".