1255411123 has 4 divisors (see below), whose sum is σ = 1295908288. Its totient is φ = 1214913960.

The previous prime is 1255411099. The next prime is 1255411141. The reversal of 1255411123 is 3211145521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255411123 is a prime.

It is a super-2 number, since 2×1255411123² = 3152114175504242258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255411823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20248536 + ... + 20248597.

It is an arithmetic number, because the mean of its divisors is an integer number (323977072).

Almost surely, 2^1255411123 is an apocalyptic number.

1255411123 is a deficient number, since it is larger than the sum of its proper divisors (40497165).

1255411123 is an equidigital number, since it uses as much as digits as its factorization.

1255411123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40497164.

The product of its digits is 1200, while the sum is 25.

The square root of 1255411123 is about 35431.7812563805. The cubic root of 1255411123 is about 1078.7694956122.

Adding to 1255411123 its reverse (3211145521), we get a palindrome (4466556644).

The spelling of 1255411123 in words is "one billion, two hundred fifty-five million, four hundred eleven thousand, one hundred twenty-three".