1311255254 has 32 divisors (see below), whose sum is σ = 2193578496. Its totient is φ = 584679040.

The previous prime is 1311255233. The next prime is 1311255259. The reversal of 1311255254 is 4525521131.

It is a super-2 number, since 2×1311255254² = 3438780682285209032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311255259) 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, 75839 + ... + 91509.

It is an arithmetic number, because the mean of its divisors is an integer number (68549328).

Almost surely, 2^1311255254 is an apocalyptic number.

1311255254 is a deficient number, since it is larger than the sum of its proper divisors (882323242).

1311255254 is a wasteful number, since it uses less digits than its factorization.

1311255254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15820.

The product of its digits is 6000, while the sum is 29.

The square root of 1311255254 is about 36211.2586635704. The cubic root of 1311255254 is about 1094.5335555646.

Adding to 1311255254 its reverse (4525521131), we get a palindrome (5836776385).

The spelling of 1311255254 in words is "one billion, three hundred eleven million, two hundred fifty-five thousand, two hundred fifty-four".