1185757413121 has 2 divisors, whose sum is σ = 1185757413122. Its totient is φ = 1185757413120.

The previous prime is 1185757413103. The next prime is 1185757413131. The reversal of 1185757413121 is 1213147575811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1146923193025 + 38834220096 = 1070945^2 + 197064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185757413121 - 2⁷ = 1185757412993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1185757413131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592878706560 + 592878706561.

It is an arithmetic number, because the mean of its divisors is an integer number (592878706561).

Almost surely, 2^{1185757413121} is an apocalyptic number.

It is an amenable number.

1185757413121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185757413121 is an equidigital number, since it uses as much as digits as its factorization.

1185757413121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 46.

The spelling of 1185757413121 in words is "one trillion, one hundred eighty-five billion, seven hundred fifty-seven million, four hundred thirteen thousand, one hundred twenty-one".