11521012041631 has 16 divisors (see below), whose sum is σ = 11609400781440. Its totient is φ = 11433021588000.

The previous prime is 11521012041607. The next prime is 11521012041647. The reversal of 11521012041631 is 13614021012511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11521012041631 - 2⁷ = 11521012041503 is a prime.

It is a super-2 number, since 2×11521012041631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11521012041631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521012041601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95341456 + ... + 95462218.

It is an arithmetic number, because the mean of its divisors is an integer number (725587548840).

Almost surely, 2^{11521012041631} is an apocalyptic number.

11521012041631 is a deficient number, since it is larger than the sum of its proper divisors (88388739809).

11521012041631 is a wasteful number, since it uses less digits than its factorization.

11521012041631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122406.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 11521012041631 in words is "eleven trillion, five hundred twenty-one billion, twelve million, forty-one thousand, six hundred thirty-one".