11621156344031 has 16 divisors (see below), whose sum is σ = 12586791420000. Its totient is φ = 10665923971968.

The previous prime is 11621156344009. The next prime is 11621156344067. The reversal of 11621156344031 is 13044365112611.

11621156344031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11621156344031 - 2⁴² = 7223109832927 is a prime.

It is a super-2 number, since 2×11621156344031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621156344081) 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, 1584836 + ... + 5074841.

It is an arithmetic number, because the mean of its divisors is an integer number (786674463750).

Almost surely, 2^{11621156344031} is an apocalyptic number.

11621156344031 is a deficient number, since it is larger than the sum of its proper divisors (965635075969).

11621156344031 is a wasteful number, since it uses less digits than its factorization.

11621156344031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660458.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 11621156344031 in words is "eleven trillion, six hundred twenty-one billion, one hundred fifty-six million, three hundred forty-four thousand, thirty-one".