11521075621402 has 16 divisors (see below), whose sum is σ = 17287641043200. Its totient is φ = 5758528965280.

The previous prime is 11521075621309. The next prime is 11521075621439. The reversal of 11521075621402 is 20412657012511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68765049 + ... + 68932387.

It is an arithmetic number, because the mean of its divisors is an integer number (1080477565200).

Almost surely, 2^{11521075621402} is an apocalyptic number.

11521075621402 is a deficient number, since it is larger than the sum of its proper divisors (5766565421798).

11521075621402 is a wasteful number, since it uses less digits than its factorization.

11521075621402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179141.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 11521075621402 in words is "eleven trillion, five hundred twenty-one billion, seventy-five million, six hundred twenty-one thousand, four hundred two".