131022311101 has 4 divisors (see below), whose sum is σ = 142933430304. Its totient is φ = 119111191900.

The previous prime is 131022311099. The next prime is 131022311143. The reversal of 131022311101 is 101113220131.

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 131022311101 - 2¹ = 131022311099 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 (131022311191) 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, 5955559585 + ... + 5955559606.

It is an arithmetic number, because the mean of its divisors is an integer number (35733357576).

Almost surely, 2^131022311101 is an apocalyptic number.

131022311101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131022311101 is a deficient number, since it is larger than the sum of its proper divisors (11911119203).

131022311101 is a wasteful number, since it uses less digits than its factorization.

131022311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911119202.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131022311101 its reverse (101113220131), we get a palindrome (232135531232).

The spelling of 131022311101 in words is "one hundred thirty-one billion, twenty-two million, three hundred eleven thousand, one hundred one".