11512020452 has 12 divisors (see below), whose sum is σ = 20148710400. Its totient is φ = 5755246056.

The previous prime is 11512020439. The next prime is 11512020461. The reversal of 11512020452 is 25402021511.

It is a super-2 number, since 2×11512020452² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156452 + ... + 217947.

It is an arithmetic number, because the mean of its divisors is an integer number (1679059200).

Almost surely, 2^11512020452 is an apocalyptic number.

It is an amenable number.

11512020452 is a deficient number, since it is larger than the sum of its proper divisors (8636689948).

11512020452 is a wasteful number, since it uses less digits than its factorization.

11512020452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382090 (or 382088 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 11512020452 its reverse (25402021511), we get a palindrome (36914041963).

The spelling of 11512020452 in words is "eleven billion, five hundred twelve million, twenty thousand, four hundred fifty-two".