21142083060 has 72 divisors (see below), whose sum is σ = 73292558976. Its totient is φ = 4832475840.

The previous prime is 21142083041. The next prime is 21142083071. The reversal of 21142083060 is 6038024112.

It is a super-2 number, since 2×21142083060² (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 23 ways as a sum of consecutive naturals, for example, 8388456 + ... + 8390975.

It is an arithmetic number, because the mean of its divisors is an integer number (1017952208).

Almost surely, 2^21142083060 is an apocalyptic number.

21142083060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21142083060 is an abundant number, since it is smaller than the sum of its proper divisors (52150475916).

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

21142083060 is a wasteful number, since it uses less digits than its factorization.

21142083060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16779453 (or 16779448 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 21142083060 in words is "twenty-one billion, one hundred forty-two million, eighty-three thousand, sixty".