1042125013 has 2 divisors, whose sum is σ = 1042125014. Its totient is φ = 1042125012.

The previous prime is 1042124987. The next prime is 1042125079. The reversal of 1042125013 is 3105212401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1039869009 + 2256004 = 32247^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042125013 - 2²⁵ = 1008570581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042123013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521062506 + 521062507.

It is an arithmetic number, because the mean of its divisors is an integer number (521062507).

Almost surely, 2^1042125013 is an apocalyptic number.

It is an amenable number.

1042125013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042125013 is an equidigital number, since it uses as much as digits as its factorization.

1042125013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1042125013 is about 32281.9611083342. The cubic root of 1042125013 is about 1013.8489910596.

Adding to 1042125013 its reverse (3105212401), we get a palindrome (4147337414).

The spelling of 1042125013 in words is "one billion, forty-two million, one hundred twenty-five thousand, thirteen".