1311451263226 has 32 divisors (see below), whose sum is σ = 2127998972736. Its totient is φ = 602574672000.

The previous prime is 1311451263211. The next prime is 1311451263277. The reversal of 1311451263226 is 6223621541131.

It is a super-2 number, since 2×1311451263226² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7888581 + ... + 8053111.

It is an arithmetic number, because the mean of its divisors is an integer number (66499967898).

Almost surely, 2^{1311451263226} is an apocalyptic number.

1311451263226 is a deficient number, since it is larger than the sum of its proper divisors (816547709510).

1311451263226 is a wasteful number, since it uses less digits than its factorization.

1311451263226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165918.

The product of its digits is 51840, while the sum is 37.

The spelling of 1311451263226 in words is "one trillion, three hundred eleven billion, four hundred fifty-one million, two hundred sixty-three thousand, two hundred twenty-six".