2120244623631 has 28 divisors (see below), whose sum is σ = 3180336227832. Its totient is φ = 1412863457616.

The previous prime is 2120244623621. The next prime is 2120244623633. The reversal of 2120244623631 is 1363264420212.

2120244623631 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 24 + 4 + 623 + 6 + 3 + 1 = 666.

It is not a de Polignac number, because 2120244623631 - 2¹⁷ = 2120244492559 is a prime.

It is a super-2 number, since 2×2120244623631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120244623633) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 980700 + ... + 2280846.

Almost surely, 2^{2120244623631} is an apocalyptic number.

2120244623631 is a deficient number, since it is larger than the sum of its proper divisors (1060091604201).

2120244623631 is an equidigital number, since it uses as much as digits as its factorization.

2120244623631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302402 (or 1302387 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 2120244623631 in words is "two trillion, one hundred twenty billion, two hundred forty-four million, six hundred twenty-three thousand, six hundred thirty-one".