3123321020153 has 2 divisors, whose sum is σ = 3123321020154. Its totient is φ = 3123321020152.

The previous prime is 3123321020107. The next prime is 3123321020161. The reversal of 3123321020153 is 3510201233213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3123321013264 + 6889 = 1767292^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123321020153 - 2²⁸ = 3123052584697 is a prime.

It is not a weakly prime, because it can be changed into another prime (3123321020753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561660510076 + 1561660510077.

It is an arithmetic number, because the mean of its divisors is an integer number (1561660510077).

Almost surely, 2^{3123321020153} is an apocalyptic number.

It is an amenable number.

3123321020153 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123321020153 is an equidigital number, since it uses as much as digits as its factorization.

3123321020153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 3123321020153 its reverse (3510201233213), we get a palindrome (6633522253366).

The spelling of 3123321020153 in words is "three trillion, one hundred twenty-three billion, three hundred twenty-one million, twenty thousand, one hundred fifty-three".