2131022241431 has 4 divisors (see below), whose sum is σ = 2131068127200. Its totient is φ = 2130976355664.

The previous prime is 2131022241379. The next prime is 2131022241463. The reversal of 2131022241431 is 1341422201312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131022241431 - 2¹⁴ = 2131022225047 is a prime.

It is a super-2 number, since 2×2131022241431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131022241431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131022241331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22873151 + ... + 22966128.

It is an arithmetic number, because the mean of its divisors is an integer number (532767031800).

Almost surely, 2^{2131022241431} is an apocalyptic number.

2131022241431 is a deficient number, since it is larger than the sum of its proper divisors (45885769).

2131022241431 is an equidigital number, since it uses as much as digits as its factorization.

2131022241431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45885768.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2131022241431 its reverse (1341422201312), we get a palindrome (3472444442743).

The spelling of 2131022241431 in words is "two trillion, one hundred thirty-one billion, twenty-two million, two hundred forty-one thousand, four hundred thirty-one".