1131261059 has 2 divisors, whose sum is σ = 1131261060. Its totient is φ = 1131261058.

The previous prime is 1131261037. The next prime is 1131261067. The reversal of 1131261059 is 9501621311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131261059 - 2²⁰ = 1130212483 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131260059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565630529 + 565630530.

It is an arithmetic number, because the mean of its divisors is an integer number (565630530).

Almost surely, 2^1131261059 is an apocalyptic number.

1131261059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131261059 is an equidigital number, since it uses as much as digits as its factorization.

1131261059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 1131261059 is about 33634.2245190818. The cubic root of 1131261059 is about 1041.9677547330.

The spelling of 1131261059 in words is "one billion, one hundred thirty-one million, two hundred sixty-one thousand, fifty-nine".