1023252001091 has 2 divisors, whose sum is σ = 1023252001092. Its totient is φ = 1023252001090.

The previous prime is 1023252001081. The next prime is 1023252001159. The reversal of 1023252001091 is 1901002523201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023252001091 - 2¹⁸ = 1023251738947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023252001091.

It is not a weakly prime, because it can be changed into another prime (1023252001021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511626000545 + 511626000546.

It is an arithmetic number, because the mean of its divisors is an integer number (511626000546).

Almost surely, 2^{1023252001091} is an apocalyptic number.

1023252001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023252001091 is an equidigital number, since it uses as much as digits as its factorization.

1023252001091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 1023252001091 its reverse (1901002523201), we get a palindrome (2924254524292).

The spelling of 1023252001091 in words is "one trillion, twenty-three billion, two hundred fifty-two million, one thousand, ninety-one".