101231102031 has 4 divisors (see below), whose sum is σ = 134974802712. Its totient is φ = 67487401352.

The previous prime is 101231101997. The next prime is 101231102033. The reversal of 101231102031 is 130201132101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101231102031 - 2⁶ = 101231101967 is a prime.

It is a super-2 number, since 2×101231102031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101231102031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231102033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16871850336 + ... + 16871850341.

It is an arithmetic number, because the mean of its divisors is an integer number (33743700678).

Almost surely, 2^101231102031 is an apocalyptic number.

101231102031 is a deficient number, since it is larger than the sum of its proper divisors (33743700681).

101231102031 is an equidigital number, since it uses as much as digits as its factorization.

101231102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33743700680.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 101231102031 its reverse (130201132101), we get a palindrome (231432234132).

The spelling of 101231102031 in words is "one hundred one billion, two hundred thirty-one million, one hundred two thousand, thirty-one".