20400200310 has 64 divisors (see below), whose sum is σ = 55973606400. Its totient is φ = 4661338752.

The previous prime is 20400200299. The next prime is 20400200323. The reversal of 20400200310 is 1300200402.

It is a super-2 number, since 2×20400200310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682356 + ... + 711624.

It is an arithmetic number, because the mean of its divisors is an integer number (874587600).

Almost surely, 2^20400200310 is an apocalyptic number.

20400200310 is an abundant number, since it is smaller than the sum of its proper divisors (35573406090).

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

20400200310 is a wasteful number, since it uses less digits than its factorization.

20400200310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32605.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20400200310 its reverse (1300200402), we get a palindrome (21700400712).

The spelling of 20400200310 in words is "twenty billion, four hundred million, two hundred thousand, three hundred ten".