11920920937 has 2 divisors, whose sum is σ = 11920920938. Its totient is φ = 11920920936.

The previous prime is 11920920883. The next prime is 11920920971. The reversal of 11920920937 is 73902902911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8674314496 + 3246606441 = 93136^2 + 56979^2 .

It is a cyclic number.

It is not a de Polignac number, because 11920920937 - 2²⁷ = 11786703209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11920920893 and 11920920902.

It is not a weakly prime, because it can be changed into another prime (11920920997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5960460468 + 5960460469.

It is an arithmetic number, because the mean of its divisors is an integer number (5960460469).

Almost surely, 2^11920920937 is an apocalyptic number.

It is an amenable number.

11920920937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11920920937 is an equidigital number, since it uses as much as digits as its factorization.

11920920937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 11920920937 in words is "eleven billion, nine hundred twenty million, nine hundred twenty thousand, nine hundred thirty-seven".