2131433131431 has 32 divisors (see below), whose sum is σ = 2878172038656. Its totient is φ = 1402909200000.

The previous prime is 2131433131427. The next prime is 2131433131463. The reversal of 2131433131431 is 1341313341312.

It is a happy number.

It is not a de Polignac number, because 2131433131431 - 2² = 2131433131427 is a prime.

It is a super-2 number, since 2×2131433131431² (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 (2131433151431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215269581 + ... + 215279481.

It is an arithmetic number, because the mean of its divisors is an integer number (89942876208).

Almost surely, 2^{2131433131431} is an apocalyptic number.

2131433131431 is a deficient number, since it is larger than the sum of its proper divisors (746738907225).

2131433131431 is a wasteful number, since it uses less digits than its factorization.

2131433131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11943.

The product of its digits is 7776, while the sum is 30.

Adding to 2131433131431 its reverse (1341313341312), we get a palindrome (3472746472743).

The spelling of 2131433131431 in words is "two trillion, one hundred thirty-one billion, four hundred thirty-three million, one hundred thirty-one thousand, four hundred thirty-one".