20012340501131 has 24 divisors (see below), whose sum is σ = 22042684092912. Its totient is φ = 18155312683200.

The previous prime is 20012340501119. The next prime is 20012340501169. The reversal of 20012340501131 is 13110504321002.

It is not a de Polignac number, because 20012340501131 - 2⁶ = 20012340501067 is a prime.

It is a super-2 number, since 2×20012340501131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012340501097 and 20012340501106.

It is not an unprimeable number, because it can be changed into a prime (20012340501331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147449441 + ... + 147585101.

It is an arithmetic number, because the mean of its divisors is an integer number (918445170538).

Almost surely, 2^{20012340501131} is an apocalyptic number.

20012340501131 is a deficient number, since it is larger than the sum of its proper divisors (2030343591781).

20012340501131 is a wasteful number, since it uses less digits than its factorization.

20012340501131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138203 (or 138192 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20012340501131 its reverse (13110504321002), we get a palindrome (33122844822133).

The spelling of 20012340501131 in words is "twenty trillion, twelve billion, three hundred forty million, five hundred one thousand, one hundred thirty-one".