621044100102023 has 12 divisors (see below), whose sum is σ = 707885831948040. Its totient is φ = 543099294013536.

The previous prime is 621044100102017. The next prime is 621044100102047. The reversal of 621044100102023 is 320201001440126.

It is not a de Polignac number, because 621044100102023 - 2²⁰ = 621044099053447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 621044100101983 and 621044100102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621044100104023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96705711536 + ... + 96705717957.

It is an arithmetic number, because the mean of its divisors is an integer number (58990485995670).

Almost surely, 2^{621044100102023} is an apocalyptic number.

621044100102023 is a deficient number, since it is larger than the sum of its proper divisors (86841731846017).

621044100102023 is a wasteful number, since it uses less digits than its factorization.

621044100102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193411429538 (or 193411429525 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 621044100102023 its reverse (320201001440126), we get a palindrome (941245101542149).

The spelling of 621044100102023 in words is "six hundred twenty-one trillion, forty-four billion, one hundred million, one hundred two thousand, twenty-three".