20213103400 has 48 divisors (see below), whose sum is σ = 53709107040. Its totient is φ = 6930206400.

The previous prime is 20213103389. The next prime is 20213103413. The reversal of 20213103400 is 430131202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7217566 + ... + 7220365.

It is an arithmetic number, because the mean of its divisors is an integer number (1118939730).

Almost surely, 2^20213103400 is an apocalyptic number.

20213103400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213103400 is an abundant number, since it is smaller than the sum of its proper divisors (33496003640).

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

20213103400 is a wasteful number, since it uses less digits than its factorization.

20213103400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14437954 (or 14437945 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20213103400 its reverse (430131202), we get a palindrome (20643234602).

The spelling of 20213103400 in words is "twenty billion, two hundred thirteen million, one hundred three thousand, four hundred".