11520240356 has 6 divisors (see below), whose sum is σ = 20160420630. Its totient is φ = 5760120176.

The previous prime is 11520240293. The next prime is 11520240377. The reversal of 11520240356 is 65304202511.

It can be written as a sum of positive squares in only one way, i.e., 11511144100 + 9096256 = 107290^2 + 3016^2 .

It is a super-2 number, since 2×11520240356² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440030041 + ... + 1440030048.

It is an arithmetic number, because the mean of its divisors is an integer number (3360070105).

Almost surely, 2^11520240356 is an apocalyptic number.

It is an amenable number.

11520240356 is a deficient number, since it is larger than the sum of its proper divisors (8640180274).

11520240356 is a wasteful number, since it uses less digits than its factorization.

11520240356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880060093 (or 2880060091 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 11520240356 its reverse (65304202511), we get a palindrome (76824442867).

The spelling of 11520240356 in words is "eleven billion, five hundred twenty million, two hundred forty thousand, three hundred fifty-six".