3121255223 has 2 divisors, whose sum is σ = 3121255224. Its totient is φ = 3121255222.

The previous prime is 3121255219. The next prime is 3121255271. The reversal of 3121255223 is 3225521213.

It is a happy number.

3121255223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121255223 - 2² = 3121255219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121255192 and 3121255201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121254223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560627611 + 1560627612.

It is an arithmetic number, because the mean of its divisors is an integer number (1560627612).

Almost surely, 2^3121255223 is an apocalyptic number.

3121255223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121255223 is an equidigital number, since it uses as much as digits as its factorization.

3121255223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 3121255223 is about 55868.1950934519. The cubic root of 3121255223 is about 1461.4246466475.

Adding to 3121255223 its reverse (3225521213), we get a palindrome (6346776436).

The spelling of 3121255223 in words is "three billion, one hundred twenty-one million, two hundred fifty-five thousand, two hundred twenty-three".