11011972 has 6 divisors (see below), whose sum is σ = 19270958. Its totient is φ = 5505984.

The previous prime is 11011939. The next prime is 11011981. The reversal of 11011972 is 27911011.

It can be written as a sum of positive squares in only one way, i.e., 10394176 + 617796 = 3224^2 + 786^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1376493 + ... + 1376500.

Almost surely, 2^11011972 is an apocalyptic number.

It is an amenable number.

11011972 is a deficient number, since it is larger than the sum of its proper divisors (8258986).

11011972 is a wasteful number, since it uses less digits than its factorization.

11011972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752997 (or 2752995 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 11011972 is about 3318.4291464487. The cubic root of 11011972 is about 222.4786631056.

Adding to 11011972 its reverse (27911011), we get a palindrome (38922983).

The spelling of 11011972 in words is "eleven million, eleven thousand, nine hundred seventy-two".