31541423140254 has 32 divisors (see below), whose sum is σ = 64550744121600. Its totient is φ = 10269164549952.

The previous prime is 31541423140193. The next prime is 31541423140307. The reversal of 31541423140254 is 45204132414513.

It is a super-2 number, since 2×31541423140254² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19715074 + ... + 21254810.

It is an arithmetic number, because the mean of its divisors is an integer number (2017210753800).

Almost surely, 2^{31541423140254} is an apocalyptic number.

31541423140254 is an abundant number, since it is smaller than the sum of its proper divisors (33009320981346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31541423140254 is a wasteful number, since it uses less digits than its factorization.

31541423140254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619184.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 31541423140254 its reverse (45204132414513), we get a palindrome (76745555554767).

The spelling of 31541423140254 in words is "thirty-one trillion, five hundred forty-one billion, four hundred twenty-three million, one hundred forty thousand, two hundred fifty-four".