2231256342131 has 16 divisors (see below), whose sum is σ = 2321426368800. Its totient is φ = 2142744899328.

The previous prime is 2231256342121. The next prime is 2231256342157. The reversal of 2231256342131 is 1312436521322.

It is a cyclic number.

It is not a de Polignac number, because 2231256342131 - 2⁶ = 2231256342067 is a prime.

It is a super-3 number, since 3×2231256342131³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231256342091 and 2231256342100.

It is not an unprimeable number, because it can be changed into a prime (2231256342101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252205 + ... + 2455713.

It is an arithmetic number, because the mean of its divisors is an integer number (145089148050).

Almost surely, 2^{2231256342131} is an apocalyptic number.

2231256342131 is a deficient number, since it is larger than the sum of its proper divisors (90170026669).

2231256342131 is a wasteful number, since it uses less digits than its factorization.

2231256342131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204198.

The product of its digits is 51840, while the sum is 35.

The spelling of 2231256342131 in words is "two trillion, two hundred thirty-one billion, two hundred fifty-six million, three hundred forty-two thousand, one hundred thirty-one".