2101431435231 has 16 divisors (see below), whose sum is σ = 2899594827360. Its totient is φ = 1352146790400.

The previous prime is 2101431435217. The next prime is 2101431435277. The reversal of 2101431435231 is 1325341341012.

It is not a de Polignac number, because 2101431435231 - 2¹⁴ = 2101431418847 is a prime.

It is a super-2 number, since 2×2101431435231² (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 (2101431435731) 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, 4215570 + ... + 4687631.

It is an arithmetic number, because the mean of its divisors is an integer number (181224676710).

Almost surely, 2^{2101431435231} is an apocalyptic number.

2101431435231 is a deficient number, since it is larger than the sum of its proper divisors (798163392129).

2101431435231 is a wasteful number, since it uses less digits than its factorization.

2101431435231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8905946.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 2101431435231 its reverse (1325341341012), we get a palindrome (3426772776243).

The spelling of 2101431435231 in words is "two trillion, one hundred one billion, four hundred thirty-one million, four hundred thirty-five thousand, two hundred thirty-one".