11920118761 has 2 divisors, whose sum is σ = 11920118762. Its totient is φ = 11920118760.

The previous prime is 11920118747. The next prime is 11920118767. The reversal of 11920118761 is 16781102911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10625486400 + 1294632361 = 103080^2 + 35981^2 .

It is a cyclic number.

It is not a de Polignac number, because 11920118761 - 2¹³ = 11920110569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11920118761.

It is not a weakly prime, because it can be changed into another prime (11920118767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5960059380 + 5960059381.

It is an arithmetic number, because the mean of its divisors is an integer number (5960059381).

Almost surely, 2^11920118761 is an apocalyptic number.

It is an amenable number.

11920118761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11920118761 is an equidigital number, since it uses as much as digits as its factorization.

11920118761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 37.

The spelling of 11920118761 in words is "eleven billion, nine hundred twenty million, one hundred eighteen thousand, seven hundred sixty-one".