31368230145 has 48 divisors (see below), whose sum is σ = 62151598080. Its totient is φ = 14336848512.

The previous prime is 31368230087. The next prime is 31368230197. The reversal of 31368230145 is 54103286313.

It is not a de Polignac number, because 31368230145 - 2¹⁶ = 31368164609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2654911 + ... + 2666699.

It is an arithmetic number, because the mean of its divisors is an integer number (1294824960).

Almost surely, 2^31368230145 is an apocalyptic number.

31368230145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31368230145 is a deficient number, since it is larger than the sum of its proper divisors (30783367935).

31368230145 is a wasteful number, since it uses less digits than its factorization.

31368230145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20254 (or 20251 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 31368230145 in words is "thirty-one billion, three hundred sixty-eight million, two hundred thirty thousand, one hundred forty-five".