101201311031 has 4 divisors (see below), whose sum is σ = 101254381272. Its totient is φ = 101148240792.

The previous prime is 101201311021. The next prime is 101201311063. The reversal of 101201311031 is 130113102101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130113102101 = 811 ⋅160435391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101201311031 is a prime.

It is a super-2 number, since 2×101201311031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201310997 and 101201311015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201311021) 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, 26532260 + ... + 26536073.

It is an arithmetic number, because the mean of its divisors is an integer number (25313595318).

Almost surely, 2^101201311031 is an apocalyptic number.

101201311031 is a deficient number, since it is larger than the sum of its proper divisors (53070241).

101201311031 is an equidigital number, since it uses as much as digits as its factorization.

101201311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53070240.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 101201311031 its reverse (130113102101), we get a palindrome (231314413132).

The spelling of 101201311031 in words is "one hundred one billion, two hundred one million, three hundred eleven thousand, thirty-one".