21134146308 has 48 divisors (see below), whose sum is σ = 53804735040. Its totient is φ = 6403248000.

The previous prime is 21134146277. The next prime is 21134146333. The reversal of 21134146308 is 80364143112.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 1321158 + ... + 1337058.

It is an arithmetic number, because the mean of its divisors is an integer number (1120931980).

Almost surely, 2^21134146308 is an apocalyptic number.

It is an amenable number.

21134146308 is an abundant number, since it is smaller than the sum of its proper divisors (32670588732).

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

21134146308 is a wasteful number, since it uses less digits than its factorization.

21134146308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25988 (or 25986 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 21134146308 in words is "twenty-one billion, one hundred thirty-four million, one hundred forty-six thousand, three hundred eight".