20969233124 has 96 divisors (see below), whose sum is σ = 44771844096. Its totient is φ = 8399064960.

The previous prime is 20969233123. The next prime is 20969233127. The reversal of 20969233124 is 42133296902.

It is not an unprimeable number, because it can be changed into a prime (20969233123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9248639 + ... + 9250905.

It is an arithmetic number, because the mean of its divisors is an integer number (466373376).

Almost surely, 2^20969233124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20969233124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22385922048).

20969233124 is an abundant number, since it is smaller than the sum of its proper divisors (23802610972).

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

20969233124 is a wasteful number, since it uses less digits than its factorization.

20969233124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625 (or 2623 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 20969233124 in words is "twenty billion, nine hundred sixty-nine million, two hundred thirty-three thousand, one hundred twenty-four".