202431002045 has 8 divisors (see below), whose sum is σ = 253478820096. Its totient is φ = 154903723216.

The previous prime is 202431002041. The next prime is 202431002077. The reversal of 202431002045 is 540200134202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202431002045 - 2² = 202431002041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 202431002045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202431002041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880134677 + ... + 880134906.

It is an arithmetic number, because the mean of its divisors is an integer number (31684852512).

Almost surely, 2^202431002045 is an apocalyptic number.

It is an amenable number.

202431002045 is a deficient number, since it is larger than the sum of its proper divisors (51047818051).

202431002045 is a wasteful number, since it uses less digits than its factorization.

202431002045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760269611.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 202431002045 its reverse (540200134202), we get a palindrome (742631136247).

The spelling of 202431002045 in words is "two hundred two billion, four hundred thirty-one million, two thousand, forty-five".