2002202131987 has 2 divisors, whose sum is σ = 2002202131988. Its totient is φ = 2002202131986.

The previous prime is 2002202131939. The next prime is 2002202132087. The reversal of 2002202131987 is 7891312022002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002202131987 - 2²³ = 2002193743379 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002202131927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001101065993 + 1001101065994.

It is an arithmetic number, because the mean of its divisors is an integer number (1001101065994).

Almost surely, 2^{2002202131987} is an apocalyptic number.

2002202131987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002202131987 is an equidigital number, since it uses as much as digits as its factorization.

2002202131987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

Adding to 2002202131987 its reverse (7891312022002), we get a palindrome (9893514153989).

The spelling of 2002202131987 in words is "two trillion, two billion, two hundred two million, one hundred thirty-one thousand, nine hundred eighty-seven".