31315230245103 has 32 divisors (see below), whose sum is σ = 51478723224576. Its totient is φ = 16524034595328.

The previous prime is 31315230245093. The next prime is 31315230245129. The reversal of 31315230245103 is 30154203251313.

It is not a de Polignac number, because 31315230245103 - 2⁵ = 31315230245071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31315230245153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827506851 + ... + 827544692.

It is an arithmetic number, because the mean of its divisors is an integer number (1608710100768).

Almost surely, 2^{31315230245103} is an apocalyptic number.

31315230245103 is a deficient number, since it is larger than the sum of its proper divisors (20163492979473).

31315230245103 is a wasteful number, since it uses less digits than its factorization.

31315230245103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655051623.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 31315230245103 its reverse (30154203251313), we get a palindrome (61469433496416).

The spelling of 31315230245103 in words is "thirty-one trillion, three hundred fifteen billion, two hundred thirty million, two hundred forty-five thousand, one hundred three".