223013136400 has 30 divisors (see below), whose sum is σ = 535789061162. Its totient is φ = 89205254400.

The previous prime is 223013136397. The next prime is 223013136449. The reversal of 223013136400 is 4631310322.

It can be written as a sum of positive squares in 3 ways, for example, as 5599828224 + 217413308176 = 74832^2 + 466276^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278766021 + ... + 278766820.

Almost surely, 2^223013136400 is an apocalyptic number.

223013136400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223013136400 is an abundant number, since it is smaller than the sum of its proper divisors (312775924762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223013136400 is a wasteful number, since it uses less digits than its factorization.

223013136400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557532859 (or 557532848 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 223013136400 its reverse (4631310322), we get a palindrome (227644446722).

The spelling of 223013136400 in words is "two hundred twenty-three billion, thirteen million, one hundred thirty-six thousand, four hundred".