16320121101831 has 8 divisors (see below), whose sum is σ = 22290897114864. Its totient is φ = 10614712911680.

The previous prime is 16320121101799. The next prime is 16320121101833. The reversal of 16320121101831 is 13810112102361.

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 16320121101831 - 2⁵ = 16320121101799 is a prime.

It is a super-2 number, since 2×16320121101831² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16320121101833) 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, 66341955576 + ... + 66341955821.

It is an arithmetic number, because the mean of its divisors is an integer number (2786362139358).

Almost surely, 2^{16320121101831} is an apocalyptic number.

16320121101831 is a deficient number, since it is larger than the sum of its proper divisors (5970776013033).

16320121101831 is a wasteful number, since it uses less digits than its factorization.

16320121101831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132683911441.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 16320121101831 in words is "sixteen trillion, three hundred twenty billion, one hundred twenty-one million, one hundred one thousand, eight hundred thirty-one".