21147058130 has 32 divisors (see below), whose sum is σ = 43330578048. Its totient is φ = 7355497600.

The previous prime is 21147058109. The next prime is 21147058169. The reversal of 21147058130 is 3185074112.

It is a super-4 number, since 4×21147058130⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4176731 + ... + 4181790.

It is an arithmetic number, because the mean of its divisors is an integer number (1354080564).

Almost surely, 2^21147058130 is an apocalyptic number.

21147058130 is an abundant number, since it is smaller than the sum of its proper divisors (22183519918).

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

21147058130 is a wasteful number, since it uses less digits than its factorization.

21147058130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358562.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 21147058130 in words is "twenty-one billion, one hundred forty-seven million, fifty-eight thousand, one hundred thirty".