2101023431 has 12 divisors (see below), whose sum is σ = 2285646552. Its totient is φ = 1919717664.

The previous prime is 2101023391. The next prime is 2101023433. The reversal of 2101023431 is 1343201012.

It is not a de Polignac number, because 2101023431 - 2⁶ = 2101023367 is a prime.

It is a super-2 number, since 2×2101023431² = 8828598915222023522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101023433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1708925 + ... + 1710153.

It is an arithmetic number, because the mean of its divisors is an integer number (190470546).

Almost surely, 2^2101023431 is an apocalyptic number.

2101023431 is a deficient number, since it is larger than the sum of its proper divisors (184623121).

2101023431 is an equidigital number, since it uses as much as digits as its factorization.

2101023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2101023431 is about 45836.9221370720. The cubic root of 2101023431 is about 1280.7871604747.

Adding to 2101023431 its reverse (1343201012), we get a palindrome (3444224443).

The spelling of 2101023431 in words is "two billion, one hundred one million, twenty-three thousand, four hundred thirty-one".