2131356134560 has 24 divisors (see below), whose sum is σ = 5035328868276. Its totient is φ = 852542453760.

The previous prime is 2131356134473. The next prime is 2131356134563. The reversal of 2131356134560 is 654316531312.

It can be written as a sum of positive squares in 2 ways, for example, as 1951284909456 + 180071225104 = 1396884^2 + 424348^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2131356134563) 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, 6660487761 + ... + 6660488080.

Almost surely, 2^{2131356134560} is an apocalyptic number.

2131356134560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131356134560 is an abundant number, since it is smaller than the sum of its proper divisors (2903972733716).

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

2131356134560 is a wasteful number, since it uses less digits than its factorization.

2131356134560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320975856 (or 13320975848 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 2131356134560 in words is "two trillion, one hundred thirty-one billion, three hundred fifty-six million, one hundred thirty-four thousand, five hundred sixty".