21345932234 has 8 divisors (see below), whose sum is σ = 34929707328. Its totient is φ = 9702696460.

The previous prime is 21345932233. The next prime is 21345932273. The reversal of 21345932234 is 43223954312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21345932233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485134802 + ... + 485134845.

It is an arithmetic number, because the mean of its divisors is an integer number (4366213416).

Almost surely, 2^21345932234 is an apocalyptic number.

21345932234 is a deficient number, since it is larger than the sum of its proper divisors (13583775094).

21345932234 is a wasteful number, since it uses less digits than its factorization.

21345932234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970269660.

The product of its digits is 155520, while the sum is 38.

The spelling of 21345932234 in words is "twenty-one billion, three hundred forty-five million, nine hundred thirty-two thousand, two hundred thirty-four".