31423506356453 has 16 divisors (see below), whose sum is σ = 31911160896384. Its totient is φ = 30936405392640.

The previous prime is 31423506356449. The next prime is 31423506356461. The reversal of 31423506356453 is 35465360532413.

It is not a de Polignac number, because 31423506356453 - 2² = 31423506356449 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 (31423506356483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033958888 + ... + 1033989278.

It is an arithmetic number, because the mean of its divisors is an integer number (1994447556024).

Almost surely, 2^{31423506356453} is an apocalyptic number.

It is an amenable number.

31423506356453 is a deficient number, since it is larger than the sum of its proper divisors (487654539931).

31423506356453 is a wasteful number, since it uses less digits than its factorization.

31423506356453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38972.

The product of its (nonzero) digits is 11664000, while the sum is 50.

Adding to 31423506356453 its reverse (35465360532413), we get a palindrome (66888866888866).

The spelling of 31423506356453 in words is "thirty-one trillion, four hundred twenty-three billion, five hundred six million, three hundred fifty-six thousand, four hundred fifty-three".