1230130691 has 2 divisors, whose sum is σ = 1230130692. Its totient is φ = 1230130690.

The previous prime is 1230130651. The next prime is 1230130703. The reversal of 1230130691 is 1960310321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230130691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230130691.

It is not a weakly prime, because it can be changed into another prime (1230130621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615065345 + 615065346.

It is an arithmetic number, because the mean of its divisors is an integer number (615065346).

Almost surely, 2^1230130691 is an apocalyptic number.

1230130691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230130691 is an equidigital number, since it uses as much as digits as its factorization.

1230130691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1230130691 is about 35073.2189996869. The cubic root of 1230130691 is about 1071.4792162414.

The spelling of 1230130691 in words is "one billion, two hundred thirty million, one hundred thirty thousand, six hundred ninety-one".