31023020201138 has 64 divisors (see below), whose sum is σ = 56901721985280. Its totient is φ = 12388756896000.

The previous prime is 31023020201137. The next prime is 31023020201167. The reversal of 31023020201138 is 83110202032013.

It is not an unprimeable number, because it can be changed into a prime (31023020201137) 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, 683108120 + ... + 683153532.

It is an arithmetic number, because the mean of its divisors is an integer number (889089406020).

Almost surely, 2^{31023020201138} is an apocalyptic number.

31023020201138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

31023020201138 is a deficient number, since it is larger than the sum of its proper divisors (25878701784142).

31023020201138 is a wasteful number, since it uses less digits than its factorization.

31023020201138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87603.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 31023020201138 in words is "thirty-one trillion, twenty-three billion, twenty million, two hundred one thousand, one hundred thirty-eight".