20112131301 has 16 divisors (see below), whose sum is σ = 27839626560. Its totient is φ = 12899653760.

The previous prime is 20112131297. The next prime is 20112131309. The reversal of 20112131301 is 10313121102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20112131301 - 2² = 20112131297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112131309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386895 + ... + 435788.

It is an arithmetic number, because the mean of its divisors is an integer number (1739976660).

Almost surely, 2^20112131301 is an apocalyptic number.

It is an amenable number.

20112131301 is a deficient number, since it is larger than the sum of its proper divisors (7727495259).

20112131301 is a wasteful number, since it uses less digits than its factorization.

20112131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822996.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20112131301 its reverse (10313121102), we get a palindrome (30425252403).

It can be divided in two parts, 2011 and 2131301, that added together give a palindrome (2133312).

The spelling of 20112131301 in words is "twenty billion, one hundred twelve million, one hundred thirty-one thousand, three hundred one".