202000020131989 has 2 divisors, whose sum is σ = 202000020131990. Its totient is φ = 202000020131988.

The previous prime is 202000020131983. The next prime is 202000020132059. The reversal of 202000020131989 is 989131020000202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180602151768900 + 21397868363089 = 13438830^2 + 4625783^2 .

It is a cyclic number.

It is not a de Polignac number, because 202000020131989 - 2²⁷ = 201999885914261 is a prime.

It is a super-2 number, since 2×202000020131989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202000020131983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101000010065994 + 101000010065995.

It is an arithmetic number, because the mean of its divisors is an integer number (101000010065995).

Almost surely, 2^{202000020131989} is an apocalyptic number.

It is an amenable number.

202000020131989 is a deficient number, since it is larger than the sum of its proper divisors (1).

202000020131989 is an equidigital number, since it uses as much as digits as its factorization.

202000020131989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 202000020131989 in words is "two hundred two trillion, twenty million, one hundred thirty-one thousand, nine hundred eighty-nine".