125233661503 has 2 divisors, whose sum is σ = 125233661504. Its totient is φ = 125233661502.

The previous prime is 125233661453. The next prime is 125233661537. The reversal of 125233661503 is 305166332521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125233661503 - 2⁹ = 125233660991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125233661573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62616830751 + 62616830752.

It is an arithmetic number, because the mean of its divisors is an integer number (62616830752).

Almost surely, 2^125233661503 is an apocalyptic number.

125233661503 is a deficient number, since it is larger than the sum of its proper divisors (1).

125233661503 is an equidigital number, since it uses as much as digits as its factorization.

125233661503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 125233661503 in words is "one hundred twenty-five billion, two hundred thirty-three million, six hundred sixty-one thousand, five hundred three".