31010022120000 has 1120 divisors, whose sum is σ = 127975034880000. Its totient is φ = 6436085760000.

The previous prime is 31010022119873. The next prime is 31010022120037. The reversal of 31010022120000 is 2122001013.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11540758657 + ... + 11540761343.

It is an arithmetic number, because the mean of its divisors is an integer number (114263424000).

Almost surely, 2^{31010022120000} is an apocalyptic number.

31010022120000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31010022120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63987517440000).

31010022120000 is an abundant number, since it is smaller than the sum of its proper divisors (96965012760000).

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

31010022120000 is a wasteful number, since it uses less digits than its factorization.

31010022120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 31010022120000 its reverse (2122001013), we get a palindrome (31012144121013).

The spelling of 31010022120000 in words is "thirty-one trillion, ten billion, twenty-two million, one hundred twenty thousand".