11543271261522 has 64 divisors (see below), whose sum is σ = 30997315851264. Its totient is φ = 2767617483840.

The previous prime is 11543271261479. The next prime is 11543271261611. The reversal of 11543271261522 is 22516217234511.

It is a super-2 number, since 2×11543271261522² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 960972288 + ... + 960984299.

It is an arithmetic number, because the mean of its divisors is an integer number (484333060176).

Almost surely, 2^{11543271261522} is an apocalyptic number.

11543271261522 is an abundant number, since it is smaller than the sum of its proper divisors (19454044589742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11543271261522 is a wasteful number, since it uses less digits than its factorization.

11543271261522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921956623.

The product of its digits is 201600, while the sum is 42.

The spelling of 11543271261522 in words is "eleven trillion, five hundred forty-three billion, two hundred seventy-one million, two hundred sixty-one thousand, five hundred twenty-two".