1023425191 has 2 divisors, whose sum is σ = 1023425192. Its totient is φ = 1023425190.

The previous prime is 1023425129. The next prime is 1023425233. The reversal of 1023425191 is 1915243201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023425191 - 2²⁷ = 889207463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023425111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511712595 + 511712596.

It is an arithmetic number, because the mean of its divisors is an integer number (511712596).

Almost surely, 2^1023425191 is an apocalyptic number.

1023425191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023425191 is an equidigital number, since it uses as much as digits as its factorization.

1023425191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1023425191 is about 31991.0173486246. The cubic root of 1023425191 is about 1007.7482072309.

Adding to 1023425191 its reverse (1915243201), we get a palindrome (2938668392).

The spelling of 1023425191 in words is "one billion, twenty-three million, four hundred twenty-five thousand, one hundred ninety-one".