21300107290 has 32 divisors (see below), whose sum is σ = 47800761984. Its totient is φ = 6638994240.

The previous prime is 21300107273. The next prime is 21300107291. The reversal of 21300107290 is 9270100312.

It is a super-2 number, since 2×21300107290² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21300107291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13830469 + ... + 13832008.

It is an arithmetic number, because the mean of its divisors is an integer number (1493773812).

Almost surely, 2^21300107290 is an apocalyptic number.

21300107290 is an abundant number, since it is smaller than the sum of its proper divisors (26500654694).

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

21300107290 is a wasteful number, since it uses less digits than its factorization.

21300107290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27662502.

The product of its (nonzero) digits is 756, while the sum is 25.

The spelling of 21300107290 in words is "twenty-one billion, three hundred million, one hundred seven thousand, two hundred ninety".