1256245102623 has 16 divisors (see below), whose sum is σ = 1933231504896. Its totient is φ = 710746874400.

The previous prime is 1256245102613. The next prime is 1256245102633. The reversal of 1256245102623 is 3262015426521.

It is an interprime number because it is at equal distance from previous prime (1256245102613) and next prime (1256245102633).

It is not a de Polignac number, because 1256245102623 - 2¹⁰ = 1256245101599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256245102603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296142411 + ... + 296146652.

It is an arithmetic number, because the mean of its divisors is an integer number (120826969056).

Almost surely, 2^{1256245102623} is an apocalyptic number.

1256245102623 is a deficient number, since it is larger than the sum of its proper divisors (676986402273).

1256245102623 is a wasteful number, since it uses less digits than its factorization.

1256245102623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592289174.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 1256245102623 in words is "one trillion, two hundred fifty-six billion, two hundred forty-five million, one hundred two thousand, six hundred twenty-three".