202400131123 has 8 divisors (see below), whose sum is σ = 214779801600. Its totient is φ = 190318766088.

The previous prime is 202400131103. The next prime is 202400131181. The reversal of 202400131123 is 321131004202.

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 202400131123 - 2⁵ = 202400131091 is a prime.

It is a super-2 number, since 2×202400131123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202400131123.

It is not an unprimeable number, because it can be changed into a prime (202400131103) 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, 74574963 + ... + 74577676.

It is an arithmetic number, because the mean of its divisors is an integer number (26847475200).

Almost surely, 2^202400131123 is an apocalyptic number.

202400131123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202400131123 is a deficient number, since it is larger than the sum of its proper divisors (12379670477).

202400131123 is a wasteful number, since it uses less digits than its factorization.

202400131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149152721.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202400131123 its reverse (321131004202), we get a palindrome (523531135325).

The spelling of 202400131123 in words is "two hundred two billion, four hundred million, one hundred thirty-one thousand, one hundred twenty-three".