10031212122320 has 40 divisors (see below), whose sum is σ = 23334166056480. Its totient is φ = 4010489516160.

The previous prime is 10031212122289. The next prime is 10031212122329. The reversal of 10031212122320 is 2322121213001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10031212122292 and 10031212122301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031212122329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31015190 + ... + 31336949.

It is an arithmetic number, because the mean of its divisors is an integer number (583354151412).

Almost surely, 2^{10031212122320} is an apocalyptic number.

10031212122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031212122320 is an abundant number, since it is smaller than the sum of its proper divisors (13302953934160).

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

10031212122320 is a wasteful number, since it uses less digits than its factorization.

10031212122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62354163 (or 62354157 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10031212122320 its reverse (2322121213001), we get a palindrome (12353333335321).

The spelling of 10031212122320 in words is "ten trillion, thirty-one billion, two hundred twelve million, one hundred twenty-two thousand, three hundred twenty".