200510115421 has 32 divisors (see below), whose sum is σ = 250776594432. Its totient is φ = 155748692160.

The previous prime is 200510115413. The next prime is 200510115457. The reversal of 200510115421 is 124511015002.

It is a cyclic number.

It is not a de Polignac number, because 200510115421 - 2³ = 200510115413 is a prime.

It is a super-2 number, since 2×200510115421² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200510115392 and 200510115401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200510113421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41883990 + ... + 41888776.

It is an arithmetic number, because the mean of its divisors is an integer number (7836768576).

Almost surely, 2^200510115421 is an apocalyptic number.

It is an amenable number.

200510115421 is a deficient number, since it is larger than the sum of its proper divisors (50266479011).

200510115421 is a wasteful number, since it uses less digits than its factorization.

200510115421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 200510115421 in words is "two hundred billion, five hundred ten million, one hundred fifteen thousand, four hundred twenty-one".