11531377 has 12 divisors (see below), whose sum is σ = 13623984. Its totient is φ = 9675120.

The previous prime is 11531371. The next prime is 11531407. The reversal of 11531377 is 77313511.

It is not a de Polignac number, because 11531377 - 2⁷ = 11531249 is a prime.

It is a super-4 number, since 4×11531377⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (11531371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1243 + ... + 4960.

It is an arithmetic number, because the mean of its divisors is an integer number (1135332).

Almost surely, 2^11531377 is an apocalyptic number.

It is an amenable number.

11531377 is a deficient number, since it is larger than the sum of its proper divisors (2092607).

11531377 is a wasteful number, since it uses less digits than its factorization.

11531377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240 (or 6227 counting only the distinct ones).

The product of its digits is 2205, while the sum is 28.

The square root of 11531377 is about 3395.7881264885. The cubic root of 11531377 is about 225.9229708510.

Adding to 11531377 its reverse (77313511), we get a palindrome (88844888).

The spelling of 11531377 in words is "eleven million, five hundred thirty-one thousand, three hundred seventy-seven".