2131453534140 has 72 divisors (see below), whose sum is σ = 7389038922720. Its totient is φ = 487189378944.

The previous prime is 2131453534123. The next prime is 2131453534151. The reversal of 2131453534140 is 414353541312.

2131453534140 is a `hidden beast` number, since 2 + 1 + 31 + 4 + 53 + 534 + 1 + 40 = 666.

It is a super-2 number, since 2×2131453534140² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2131453534095 and 2131453534104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845813635 + ... + 845816154.

Almost surely, 2^{2131453534140} is an apocalyptic number.

2131453534140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131453534140 is an abundant number, since it is smaller than the sum of its proper divisors (5257585388580).

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

2131453534140 is a wasteful number, since it uses less digits than its factorization.

2131453534140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691629811 (or 1691629806 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 2131453534140 in words is "two trillion, one hundred thirty-one billion, four hundred fifty-three million, five hundred thirty-four thousand, one hundred forty".