101223131223 has 16 divisors (see below), whose sum is σ = 135229317120. Its totient is φ = 67349589216.

The previous prime is 101223131213. The next prime is 101223131231. The reversal of 101223131223 is 322131322101.

It is not a de Polignac number, because 101223131223 - 2¹⁸ = 101222869079 is a prime.

It is a super-2 number, since 2×101223131223² (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 101223131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223131213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7508533 + ... + 7522001.

It is an arithmetic number, because the mean of its divisors is an integer number (8451832320).

Almost surely, 2^101223131223 is an apocalyptic number.

101223131223 is a deficient number, since it is larger than the sum of its proper divisors (34006185897).

101223131223 is a wasteful number, since it uses less digits than its factorization.

101223131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18206.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 101223131223 its reverse (322131322101), we get a palindrome (423354453324).

The spelling of 101223131223 in words is "one hundred one billion, two hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-three".