21341523432 has 32 divisors (see below), whose sum is σ = 53470584000. Its totient is φ = 7098271104.

The previous prime is 21341523431. The next prime is 21341523433. The reversal of 21341523432 is 23432514312.

It is an interprime number because it is at equal distance from previous prime (21341523431) and next prime (21341523433).

It is a self number, because there is not a number n which added to its sum of digits gives 21341523432.

It is not an unprimeable number, because it can be changed into a prime (21341523431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961932 + ... + 983867.

It is an arithmetic number, because the mean of its divisors is an integer number (1670955750).

Almost surely, 2^21341523432 is an apocalyptic number.

It is an amenable number.

21341523432 is an abundant number, since it is smaller than the sum of its proper divisors (32129060568).

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

21341523432 is a wasteful number, since it uses less digits than its factorization.

21341523432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946265 (or 1946261 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The spelling of 21341523432 in words is "twenty-one billion, three hundred forty-one million, five hundred twenty-three thousand, four hundred thirty-two".