20431201052 has 48 divisors (see below), whose sum is σ = 38129888160. Its totient is φ = 9545766912.

The previous prime is 20431201013. The next prime is 20431201061. The reversal of 20431201052 is 25010213402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12329408 + ... + 12331064.

It is an arithmetic number, because the mean of its divisors is an integer number (794372670).

Almost surely, 2^20431201052 is an apocalyptic number.

It is an amenable number.

20431201052 is a deficient number, since it is larger than the sum of its proper divisors (17698687108).

20431201052 is a wasteful number, since it uses less digits than its factorization.

20431201052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20431201052 its reverse (25010213402), we get a palindrome (45441414454).

The spelling of 20431201052 in words is "twenty billion, four hundred thirty-one million, two hundred one thousand, fifty-two".