101111022312031 has 2 divisors, whose sum is σ = 101111022312032. Its totient is φ = 101111022312030.

The previous prime is 101111022312029. The next prime is 101111022312049. The reversal of 101111022312031 is 130213220111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101111022312031 - 2¹ = 101111022312029 is a prime.

It is a super-2 number, since 2×101111022312031² (a number of 29 digits) contains 22 as substring.

Together with 101111022312029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111022312011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555511156015 + 50555511156016.

It is an arithmetic number, because the mean of its divisors is an integer number (50555511156016).

Almost surely, 2^{101111022312031} is an apocalyptic number.

101111022312031 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111022312031 is an equidigital number, since it uses as much as digits as its factorization.

101111022312031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 101111022312031 its reverse (130213220111101), we get a palindrome (231324242423132).

The spelling of 101111022312031 in words is "one hundred one trillion, one hundred eleven billion, twenty-two million, three hundred twelve thousand, thirty-one".