1256933142203 has 12 divisors (see below), whose sum is σ = 1354025567952. Its totient is φ = 1166333965440.

The previous prime is 1256933142193. The next prime is 1256933142209. The reversal of 1256933142203 is 3022413396521.

It is not a de Polignac number, because 1256933142203 - 2¹⁸ = 1256932880059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1256933142209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30608000 + ... + 30649037.

It is an arithmetic number, because the mean of its divisors is an integer number (112835463996).

Almost surely, 2^{1256933142203} is an apocalyptic number.

1256933142203 is a deficient number, since it is larger than the sum of its proper divisors (97092425749).

1256933142203 is an equidigital number, since it uses as much as digits as its factorization.

1256933142203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61257142 (or 61257125 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 1256933142203 in words is "one trillion, two hundred fifty-six billion, nine hundred thirty-three million, one hundred forty-two thousand, two hundred three".