102031313331 has 8 divisors (see below), whose sum is σ = 139718555344. Its totient is φ = 66182473440.

The previous prime is 102031313249. The next prime is 102031313333. The reversal of 102031313331 is 133313130201.

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

It is not a de Polignac number, because 102031313331 - 2⁷ = 102031313203 is a prime.

It is a super-2 number, since 2×102031313331² (a number of 23 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 = 102031313298 and 102031313307.

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 7 ways as a sum of consecutive naturals, for example, 459600400 + ... + 459600621.

It is an arithmetic number, because the mean of its divisors is an integer number (17464819418).

Almost surely, 2^102031313331 is an apocalyptic number.

102031313331 is a deficient number, since it is larger than the sum of its proper divisors (37687242013).

102031313331 is an equidigital number, since it uses as much as digits as its factorization.

102031313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919201061.

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

Adding to 102031313331 its reverse (133313130201), we get a palindrome (235344443532).

The spelling of 102031313331 in words is "one hundred two billion, thirty-one million, three hundred thirteen thousand, three hundred thirty-one".