21303100103010 has 64 divisors (see below), whose sum is σ = 55778002980480. Its totient is φ = 5164145902080.

The previous prime is 21303100103009. The next prime is 21303100103017. The reversal of 21303100103010 is 1030100130312.

It is a super-2 number, since 2×21303100103010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (21303100103017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5590926 + ... + 8594454.

It is an arithmetic number, because the mean of its divisors is an integer number (871531296570).

Almost surely, 2^{21303100103010} is an apocalyptic number.

21303100103010 is an abundant number, since it is smaller than the sum of its proper divisors (34474902877470).

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

21303100103010 is a wasteful number, since it uses less digits than its factorization.

21303100103010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025043.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21303100103010 its reverse (1030100130312), we get a palindrome (22333200233322).

The spelling of 21303100103010 in words is "twenty-one trillion, three hundred three billion, one hundred million, one hundred three thousand, ten".