3123024101221 has 4 divisors (see below), whose sum is σ = 3230714587500. Its totient is φ = 3015333614944.

The previous prime is 3123024101209. The next prime is 3123024101257. The reversal of 3123024101221 is 1221014203213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1019320428996 + 2103703672225 = 1009614^2 + 1450415^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123024101221 - 2³⁷ = 2985585147749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3123024101192 and 3123024101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123024101321) 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, 53845243096 + ... + 53845243153.

It is an arithmetic number, because the mean of its divisors is an integer number (807678646875).

Almost surely, 2^{3123024101221} is an apocalyptic number.

It is an amenable number.

3123024101221 is a deficient number, since it is larger than the sum of its proper divisors (107690486279).

3123024101221 is a wasteful number, since it uses less digits than its factorization.

3123024101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107690486278.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 3123024101221 its reverse (1221014203213), we get a palindrome (4344038304434).

The spelling of 3123024101221 in words is "three trillion, one hundred twenty-three billion, twenty-four million, one hundred one thousand, two hundred twenty-one".