2131201023 has 16 divisors (see below), whose sum is σ = 3250238976. Its totient is φ = 1216818720.

The previous prime is 2131200997. The next prime is 2131201081. The reversal of 2131201023 is 3201021312.

It is not a de Polignac number, because 2131201023 - 2¹³ = 2131192831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131200993 and 2131201011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131201123) 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, 15808 + ... + 67173.

It is an arithmetic number, because the mean of its divisors is an integer number (203139936).

Almost surely, 2^2131201023 is an apocalyptic number.

2131201023 is a deficient number, since it is larger than the sum of its proper divisors (1119037953).

2131201023 is a wasteful number, since it uses less digits than its factorization.

2131201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84214.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2131201023 is about 46164.9328278511. The cubic root of 2131201023 is about 1286.8901358732.

Adding to 2131201023 its reverse (3201021312), we get a palindrome (5332222335).

The spelling of 2131201023 in words is "two billion, one hundred thirty-one million, two hundred one thousand, twenty-three".