11520514644431 has 8 divisors (see below), whose sum is σ = 12406757707680. Its totient is φ = 10634278671072.

The previous prime is 11520514644413. The next prime is 11520514644461. The reversal of 11520514644431 is 13444641502511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11520514644431 - 2⁴² = 7122468133327 is a prime.

It is a super-2 number, since 2×11520514644431² (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 (11520514644461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881350 + ... + 5155628.

It is an arithmetic number, because the mean of its divisors is an integer number (1550844713460).

Almost surely, 2^{11520514644431} is an apocalyptic number.

11520514644431 is a deficient number, since it is larger than the sum of its proper divisors (886243063249).

11520514644431 is a wasteful number, since it uses less digits than its factorization.

11520514644431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544945.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 11520514644431 in words is "eleven trillion, five hundred twenty billion, five hundred fourteen million, six hundred forty-four thousand, four hundred thirty-one".