20233072530 has 96 divisors (see below), whose sum is σ = 57415737600. Its totient is φ = 4902647040.

The previous prime is 20233072513. The next prime is 20233072537. The reversal of 20233072530 is 3527033202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20233072494 and 20233072503.

It is not an unprimeable number, because it can be changed into a prime (20233072537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3015159 + ... + 3021861.

It is an arithmetic number, because the mean of its divisors is an integer number (598080600).

Almost surely, 2^20233072530 is an apocalyptic number.

20233072530 is an abundant number, since it is smaller than the sum of its proper divisors (37182665070).

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

20233072530 is a wasteful number, since it uses less digits than its factorization.

20233072530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9776 (or 9773 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The spelling of 20233072530 in words is "twenty billion, two hundred thirty-three million, seventy-two thousand, five hundred thirty".