1255011333213 has 16 divisors (see below), whose sum is σ = 1825559364096. Its totient is φ = 760576123440.

The previous prime is 1255011333209. The next prime is 1255011333217. The reversal of 1255011333213 is 3123331105521.

It is an interprime number because it is at equal distance from previous prime (1255011333209) and next prime (1255011333217).

It is not a de Polignac number, because 1255011333213 - 2² = 1255011333209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255011333217) 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, 219895 + ... + 1599492.

It is an arithmetic number, because the mean of its divisors is an integer number (114097460256).

Almost surely, 2^{1255011333213} is an apocalyptic number.

It is an amenable number.

1255011333213 is a deficient number, since it is larger than the sum of its proper divisors (570548030883).

1255011333213 is a wasteful number, since it uses less digits than its factorization.

1255011333213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840304.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 1255011333213 its reverse (3123331105521), we get a palindrome (4378342438734).

The spelling of 1255011333213 in words is "one trillion, two hundred fifty-five billion, eleven million, three hundred thirty-three thousand, two hundred thirteen".