31302102113 has 8 divisors (see below), whose sum is σ = 31468689000. Its totient is φ = 31135955328.

The previous prime is 31302102049. The next prime is 31302102199. The reversal of 31302102113 is 31120120313.

It can be written as a sum of positive squares in 4 ways, for example, as 13070891584 + 18231210529 = 114328^2 + 135023^2 .

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 31302102113 - 2⁶ = 31302102049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31302102091 and 31302102100.

It is not an unprimeable number, because it can be changed into a prime (31302182113) 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, 33095 + ... + 252387.

It is an arithmetic number, because the mean of its divisors is an integer number (3933586125).

Almost surely, 2^31302102113 is an apocalyptic number.

It is an amenable number.

31302102113 is a deficient number, since it is larger than the sum of its proper divisors (166586887).

31302102113 is a wasteful number, since it uses less digits than its factorization.

31302102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220051.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31302102113 its reverse (31120120313), we get a palindrome (62422222426).

The spelling of 31302102113 in words is "thirty-one billion, three hundred two million, one hundred two thousand, one hundred thirteen".