2131230520454 has 16 divisors (see below), whose sum is σ = 3704996318976. Its totient is φ = 900519937800.

The previous prime is 2131230520421. The next prime is 2131230520493. The reversal of 2131230520454 is 4540250321312.

It is a super-2 number, since 2×2131230520454² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2131230520454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072046552 + ... + 1072048539.

It is an arithmetic number, because the mean of its divisors is an integer number (231562269936).

Almost surely, 2^{2131230520454} is an apocalyptic number.

2131230520454 is a deficient number, since it is larger than the sum of its proper divisors (1573765798522).

2131230520454 is a wasteful number, since it uses less digits than its factorization.

2131230520454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144095171.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 2131230520454 its reverse (4540250321312), we get a palindrome (6671480841766).

The spelling of 2131230520454 in words is "two trillion, one hundred thirty-one billion, two hundred thirty million, five hundred twenty thousand, four hundred fifty-four".