20312239037 has 2 divisors, whose sum is σ = 20312239038. Its totient is φ = 20312239036.

The previous prime is 20312238997. The next prime is 20312239069. The reversal of 20312239037 is 73093221302.

It is an a-pointer prime, because the next prime (20312239069) can be obtained adding 20312239037 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19383879076 + 928359961 = 139226^2 + 30469^2 .

It is a cyclic number.

It is not a de Polignac number, because 20312239037 - 2²⁰ = 20311190461 is a prime.

It is a super-3 number, since 3×20312239037³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20312238994 and 20312239012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20312239097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156119518 + 10156119519.

It is an arithmetic number, because the mean of its divisors is an integer number (10156119519).

Almost surely, 2^20312239037 is an apocalyptic number.

It is an amenable number.

20312239037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312239037 is an equidigital number, since it uses as much as digits as its factorization.

20312239037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The spelling of 20312239037 in words is "twenty billion, three hundred twelve million, two hundred thirty-nine thousand, thirty-seven".