131022111001 has 4 divisors (see below), whose sum is σ = 137918011600. Its totient is φ = 124126210404.

The previous prime is 131022110993. The next prime is 131022111007. The reversal of 131022111001 is 100111220131.

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 a cyclic number.

It is not a de Polignac number, because 131022111001 - 2³ = 131022110993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131022111007) 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, 3447950271 + ... + 3447950308.

It is an arithmetic number, because the mean of its divisors is an integer number (34479502900).

Almost surely, 2^131022111001 is an apocalyptic number.

It is an amenable number.

131022111001 is a deficient number, since it is larger than the sum of its proper divisors (6895900599).

131022111001 is an equidigital number, since it uses as much as digits as its factorization.

131022111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895900598.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 131022111001 its reverse (100111220131), we get a palindrome (231133331132).

The spelling of 131022111001 in words is "one hundred thirty-one billion, twenty-two million, one hundred eleven thousand, one".