31420315153545 has 32 divisors (see below), whose sum is σ = 52921956631680. Its totient is φ = 15874468323840.

The previous prime is 31420315153523. The next prime is 31420315153627. The reversal of 31420315153545 is 54535151302413.

31420315153545 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 31420315153545 - 2⁷ = 31420315153417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31420315153497 and 31420315153506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609115 + ... + 7950575.

It is an arithmetic number, because the mean of its divisors is an integer number (1653811144740).

Almost surely, 2^{31420315153545} is an apocalyptic number.

It is an amenable number.

31420315153545 is a deficient number, since it is larger than the sum of its proper divisors (21501641478135).

31420315153545 is a wasteful number, since it uses less digits than its factorization.

31420315153545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356505.

The product of its (nonzero) digits is 540000, while the sum is 42.

Adding to 31420315153545 its reverse (54535151302413), we get a palindrome (85955466455958).

The spelling of 31420315153545 in words is "thirty-one trillion, four hundred twenty billion, three hundred fifteen million, one hundred fifty-three thousand, five hundred forty-five".