1215425041123 has 2 divisors, whose sum is σ = 1215425041124. Its totient is φ = 1215425041122.

The previous prime is 1215425041063. The next prime is 1215425041147. The reversal of 1215425041123 is 3211405245121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1215425041123 - 2¹³ = 1215425032931 is a prime.

It is a super-2 number, since 2×1215425041123² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1215425041223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607712520561 + 607712520562.

It is an arithmetic number, because the mean of its divisors is an integer number (607712520562).

Almost surely, 2^{1215425041123} is an apocalyptic number.

1215425041123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215425041123 is an equidigital number, since it uses as much as digits as its factorization.

1215425041123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 1215425041123 in words is "one trillion, two hundred fifteen billion, four hundred twenty-five million, forty-one thousand, one hundred twenty-three".