21343152292 has 24 divisors (see below), whose sum is σ = 46566878400. Its totient is φ = 8315513760.

The previous prime is 21343152283. The next prime is 21343152307. The reversal of 21343152292 is 29225134312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34647667 + ... + 34648282.

It is an arithmetic number, because the mean of its divisors is an integer number (1940286600).

Almost surely, 2^21343152292 is an apocalyptic number.

21343152292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21343152292 is an abundant number, since it is smaller than the sum of its proper divisors (25223726108).

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

21343152292 is a wasteful number, since it uses less digits than its factorization.

21343152292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69295971 (or 69295969 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The spelling of 21343152292 in words is "twenty-one billion, three hundred forty-three million, one hundred fifty-two thousand, two hundred ninety-two".