20112130564 has 6 divisors (see below), whose sum is σ = 35196228494. Its totient is φ = 10056065280.

The previous prime is 20112130561. The next prime is 20112130567. The reversal of 20112130564 is 46503121102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20112130561) and next prime (20112130567).

It can be written as a sum of positive squares in only one way, i.e., 13492680964 + 6619449600 = 116158^2 + 81360^2 .

It is not an unprimeable number, because it can be changed into a prime (20112130561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2514016317 + ... + 2514016324.

Almost surely, 2^20112130564 is an apocalyptic number.

It is an amenable number.

20112130564 is a deficient number, since it is larger than the sum of its proper divisors (15084097930).

20112130564 is a wasteful number, since it uses less digits than its factorization.

20112130564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028032645 (or 5028032643 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20112130564 its reverse (46503121102), we get a palindrome (66615251666).

The spelling of 20112130564 in words is "twenty billion, one hundred twelve million, one hundred thirty thousand, five hundred sixty-four".