31020123320101 has 16 divisors (see below), whose sum is σ = 33449663136960. Its totient is φ = 28670294805120.

The previous prime is 31020123320077. The next prime is 31020123320117. The reversal of 31020123320101 is 10102332102013.

It is not a de Polignac number, because 31020123320101 - 2⁹ = 31020123319589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020123320201) 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, 60746895 + ... + 61255411.

It is an arithmetic number, because the mean of its divisors is an integer number (2090603946060).

Almost surely, 2^{31020123320101} is an apocalyptic number.

It is an amenable number.

31020123320101 is a deficient number, since it is larger than the sum of its proper divisors (2429539816859).

31020123320101 is a wasteful number, since it uses less digits than its factorization.

31020123320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586884.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31020123320101 its reverse (10102332102013), we get a palindrome (41122455422114).

The spelling of 31020123320101 in words is "thirty-one trillion, twenty billion, one hundred twenty-three million, three hundred twenty thousand, one hundred one".