2123520253212 has 48 divisors (see below), whose sum is σ = 5150107170432. Its totient is φ = 680411557440.

The previous prime is 2123520253189. The next prime is 2123520253223.

It is a happy number.

2123520253212 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2123520253212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28774614 + ... + 28848317.

It is an arithmetic number, because the mean of its divisors is an integer number (107293899384).

Almost surely, 2^{2123520253212} is an apocalyptic number.

It is an amenable number.

2123520253212 is an abundant number, since it is smaller than the sum of its proper divisors (3026586917220).

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

2123520253212 is a wasteful number, since it uses less digits than its factorization.

2123520253212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57623058 (or 57623056 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

It can be divided in two parts, 2123520 and 253212, that added together give a palindrome (2376732).

The spelling of 2123520253212 in words is "two trillion, one hundred twenty-three billion, five hundred twenty million, two hundred fifty-three thousand, two hundred twelve".