2002540031 has 2 divisors, whose sum is σ = 2002540032. Its totient is φ = 2002540030.

The previous prime is 2002539949. The next prime is 2002540049. The reversal of 2002540031 is 1300452002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002540031 - 2²⁶ = 1935431167 is a prime.

It is a super-2 number, since 2×2002540031² = 8020333151514961922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2002539991 and 2002540009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002540061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001270015 + 1001270016.

It is an arithmetic number, because the mean of its divisors is an integer number (1001270016).

Almost surely, 2^2002540031 is an apocalyptic number.

2002540031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002540031 is an equidigital number, since it uses as much as digits as its factorization.

2002540031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2002540031 is about 44749.7489490165. The cubic root of 2002540031 is about 1260.4541973441.

Adding to 2002540031 its reverse (1300452002), we get a palindrome (3302992033).

The spelling of 2002540031 in words is "two billion, two million, five hundred forty thousand, thirty-one".