101131322312231 has 4 divisors (see below), whose sum is σ = 102113179810512. Its totient is φ = 100149464813952.

The previous prime is 101131322312183. The next prime is 101131322312233. The reversal of 101131322312231 is 132213223131101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101131322312231 is a prime.

It is a super-2 number, since 2×101131322312231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101131322312231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101131322312233) 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, 490928748986 + ... + 490928749191.

It is an arithmetic number, because the mean of its divisors is an integer number (25528294952628).

Almost surely, 2^{101131322312231} is an apocalyptic number.

101131322312231 is a deficient number, since it is larger than the sum of its proper divisors (981857498281).

101131322312231 is an equidigital number, since it uses as much as digits as its factorization.

101131322312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981857498280.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 101131322312231 its reverse (132213223131101), we get a palindrome (233344545443332).

The spelling of 101131322312231 in words is "one hundred one trillion, one hundred thirty-one billion, three hundred twenty-two million, three hundred twelve thousand, two hundred thirty-one".