1255210123 has 8 divisors (see below), whose sum is σ = 1268840016. Its totient is φ = 1241604000.

The previous prime is 1255210111. The next prime is 1255210127. The reversal of 1255210123 is 3210125521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255210123 - 2²⁵ = 1221655691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255210094 and 1255210103.

It is not an unprimeable number, because it can be changed into a prime (1255210127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112965 + ... + 123577.

It is an arithmetic number, because the mean of its divisors is an integer number (158605002).

Almost surely, 2^1255210123 is an apocalyptic number.

1255210123 is a deficient number, since it is larger than the sum of its proper divisors (13629893).

1255210123 is a wasteful number, since it uses less digits than its factorization.

1255210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11885.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1255210123 is about 35428.9447062709. The cubic root of 1255210123 is about 1078.7119197212.

Adding to 1255210123 its reverse (3210125521), we get a palindrome (4465335644).

The spelling of 1255210123 in words is "one billion, two hundred fifty-five million, two hundred ten thousand, one hundred twenty-three".