2123616434631 has 4 divisors (see below), whose sum is σ = 2831488579512. Its totient is φ = 1415744289752.

The previous prime is 2123616434629. The next prime is 2123616434663. The reversal of 2123616434631 is 1364346163212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123616434631 - 2¹ = 2123616434629 is a prime.

It is a super-2 number, since 2×2123616434631² (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 (2123616436631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353936072436 + ... + 353936072441.

It is an arithmetic number, because the mean of its divisors is an integer number (707872144878).

Almost surely, 2^{2123616434631} is an apocalyptic number.

2123616434631 is a deficient number, since it is larger than the sum of its proper divisors (707872144881).

2123616434631 is an equidigital number, since it uses as much as digits as its factorization.

2123616434631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707872144880.

The product of its digits is 373248, while the sum is 42.

The spelling of 2123616434631 in words is "two trillion, one hundred twenty-three billion, six hundred sixteen million, four hundred thirty-four thousand, six hundred thirty-one".