202152431423 has 32 divisors (see below), whose sum is σ = 212212224000. Its totient is φ = 192437388000.

The previous prime is 202152431419. The next prime is 202152431431. The reversal of 202152431423 is 324134251202.

It is a cyclic number.

It is not a de Polignac number, because 202152431423 - 2² = 202152431419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202152431023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78382748 + ... + 78385326.

It is an arithmetic number, because the mean of its divisors is an integer number (6631632000).

Almost surely, 2^202152431423 is an apocalyptic number.

202152431423 is a deficient number, since it is larger than the sum of its proper divisors (10059792577).

202152431423 is a wasteful number, since it uses less digits than its factorization.

202152431423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 202152431423 its reverse (324134251202), we get a palindrome (526286682625).

The spelling of 202152431423 in words is "two hundred two billion, one hundred fifty-two million, four hundred thirty-one thousand, four hundred twenty-three".