3121122453149 has 2 divisors, whose sum is σ = 3121122453150. Its totient is φ = 3121122453148.

The previous prime is 3121122453131. The next prime is 3121122453173. The reversal of 3121122453149 is 9413542211213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2123670827524 + 997451625625 = 1457282^2 + 998725^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121122453149 - 2¹⁶ = 3121122387613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121122453109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560561226574 + 1560561226575.

It is an arithmetic number, because the mean of its divisors is an integer number (1560561226575).

Almost surely, 2^{3121122453149} is an apocalyptic number.

It is an amenable number.

3121122453149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121122453149 is an equidigital number, since it uses as much as digits as its factorization.

3121122453149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The spelling of 3121122453149 in words is "three trillion, one hundred twenty-one billion, one hundred twenty-two million, four hundred fifty-three thousand, one hundred forty-nine".