101220233421031 has 4 divisors (see below), whose sum is σ = 101283456554064. Its totient is φ = 101157010288000.

The previous prime is 101220233421029. The next prime is 101220233421071. The reversal of 101220233421031 is 130124332022101.

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 101220233421031 - 2¹ = 101220233421029 is a prime.

It is a super-2 number, since 2×101220233421031² (a number of 29 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 = 101220233420987 and 101220233421005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220233421071) 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, 31611564115 + ... + 31611567316.

It is an arithmetic number, because the mean of its divisors is an integer number (25320864138516).

Almost surely, 2^{101220233421031} is an apocalyptic number.

101220233421031 is a deficient number, since it is larger than the sum of its proper divisors (63223133033).

101220233421031 is an equidigital number, since it uses as much as digits as its factorization.

101220233421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63223133032.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 101220233421031 its reverse (130124332022101), we get a palindrome (231344565443132).

The spelling of 101220233421031 in words is "one hundred one trillion, two hundred twenty billion, two hundred thirty-three million, four hundred twenty-one thousand, thirty-one".