12031570101 has 4 divisors (see below), whose sum is σ = 16042093472. Its totient is φ = 8021046732.

The previous prime is 12031570099. The next prime is 12031570129. The reversal of 12031570101 is 10107513021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12031570101 - 2¹ = 12031570099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031570501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005261681 + ... + 2005261686.

It is an arithmetic number, because the mean of its divisors is an integer number (4010523368).

Almost surely, 2^12031570101 is an apocalyptic number.

It is an amenable number.

12031570101 is a deficient number, since it is larger than the sum of its proper divisors (4010523371).

12031570101 is an equidigital number, since it uses as much as digits as its factorization.

12031570101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010523370.

The product of its (nonzero) digits is 210, while the sum is 21.

The spelling of 12031570101 in words is "twelve billion, thirty-one million, five hundred seventy thousand, one hundred one".