202898649131 has 4 divisors (see below), whose sum is σ = 211720329552. Its totient is φ = 194076968712.

The previous prime is 202898649127. The next prime is 202898649133. The reversal of 202898649131 is 131946898202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202898649131 - 2² = 202898649127 is a prime.

It is a super-2 number, since 2×202898649131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202898649133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4410840176 + ... + 4410840221.

It is an arithmetic number, because the mean of its divisors is an integer number (52930082388).

Almost surely, 2^202898649131 is an apocalyptic number.

202898649131 is a deficient number, since it is larger than the sum of its proper divisors (8821680421).

202898649131 is an equidigital number, since it uses as much as digits as its factorization.

202898649131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821680420.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 202898649131 in words is "two hundred two billion, eight hundred ninety-eight million, six hundred forty-nine thousand, one hundred thirty-one".