101223121344 has 28 divisors (see below), whose sum is σ = 267819509064. Its totient is φ = 33741040384.

The previous prime is 101223121343. The next prime is 101223121367. The reversal of 101223121344 is 443121322101.

It is a super-2 number, since 2×101223121344² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223121343) 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, 263601687 + ... + 263602070.

Almost surely, 2^101223121344 is an apocalyptic number.

It is an amenable number.

101223121344 is an abundant number, since it is smaller than the sum of its proper divisors (166596387720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101223121344 is an equidigital number, since it uses as much as digits as its factorization.

101223121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527203772 (or 527203762 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 101223121344 its reverse (443121322101), we get a palindrome (544344443445).

The spelling of 101223121344 in words is "one hundred one billion, two hundred twenty-three million, one hundred twenty-one thousand, three hundred forty-four".