11892120601 has 9 divisors (see below), whose sum is σ = 11982106591. Its totient is φ = 11802807832.

The previous prime is 11892120599. The next prime is 11892120613. The reversal of 11892120601 is 10602129811.

It is a happy number.

The square root of 11892120601 is 109051.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2767286025 + 9124834576 = 52605^2 + 95524^2 .

It is not a de Polignac number, because 11892120601 - 2¹ = 11892120599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11892120641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18211191 + ... + 18211843.

Almost surely, 2^11892120601 is an apocalyptic number.

11892120601 is the 109051-st square number.

11892120601 is the 54526-th centered octagonal number.

It is an amenable number.

11892120601 is a deficient number, since it is larger than the sum of its proper divisors (89985990).

11892120601 is an frugal number, since it uses more digits than its factorization.

11892120601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 11892120601 in words is "eleven billion, eight hundred ninety-two million, one hundred twenty thousand, six hundred one".