31300012213103 has 4 divisors (see below), whose sum is σ = 31300314186960. Its totient is φ = 31299710239248.

The previous prime is 31300012213097. The next prime is 31300012213117. The reversal of 31300012213103 is 30131221000313.

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-31300012213103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300012213193) 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, 150831398 + ... + 151038771.

It is an arithmetic number, because the mean of its divisors is an integer number (7825078546740).

Almost surely, 2^{31300012213103} is an apocalyptic number.

31300012213103 is a deficient number, since it is larger than the sum of its proper divisors (301973857).

31300012213103 is a wasteful number, since it uses less digits than its factorization.

31300012213103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301973856.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31300012213103 its reverse (30131221000313), we get a palindrome (61431233213416).

The spelling of 31300012213103 in words is "thirty-one trillion, three hundred billion, twelve million, two hundred thirteen thousand, one hundred three".