20402303024 has 40 divisors (see below), whose sum is σ = 42540902208. Its totient is φ = 9443681280.

The previous prime is 20402303023. The next prime is 20402303057. The reversal of 20402303024 is 42030320402.

It is a junction number, because it is equal to n+sod(n) for n = 20402302987 and 20402303005.

It is not an unprimeable number, because it can be changed into a prime (20402303023) 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, 598232 + ... + 631415.

Almost surely, 2^20402303024 is an apocalyptic number.

It is an amenable number.

20402303024 is an abundant number, since it is smaller than the sum of its proper divisors (22138599184).

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

20402303024 is a wasteful number, since it uses less digits than its factorization.

20402303024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229733 (or 1229727 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20402303024 its reverse (42030320402), we get a palindrome (62432623426).

The spelling of 20402303024 in words is "twenty billion, four hundred two million, three hundred three thousand, twenty-four".