2231320120002 has 64 divisors (see below), whose sum is σ = 5250755352960. Its totient is φ = 699943283712.

The previous prime is 2231320119979. The next prime is 2231320120013. The reversal of 2231320120002 is 2000210231322.

2231320120002 is a `hidden beast` number, since 223 + 1 + 320 + 120 + 0 + 0 + 2 = 666.

It is a super-3 number, since 3×2231320120002³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8316298 + ... + 8580410.

It is an arithmetic number, because the mean of its divisors is an integer number (82043052390).

Almost surely, 2^{2231320120002} is an apocalyptic number.

2231320120002 is an abundant number, since it is smaller than the sum of its proper divisors (3019435232958).

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

2231320120002 is a wasteful number, since it uses less digits than its factorization.

2231320120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273344 (or 273338 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2231320120002 its reverse (2000210231322), we get a palindrome (4231530351324).

The spelling of 2231320120002 in words is "two trillion, two hundred thirty-one billion, three hundred twenty million, one hundred twenty thousand, two".