1311260655470 has 16 divisors (see below), whose sum is σ = 2360399114448. Its totient is φ = 524475387840.

The previous prime is 1311260655469. The next prime is 1311260655491. The reversal of 1311260655470 is 745560621131.

It is a happy number.

It is a super-2 number, since 2×1311260655470² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418079 + ... + 3782298.

It is an arithmetic number, because the mean of its divisors is an integer number (147524944653).

Almost surely, 2^{1311260655470} is an apocalyptic number.

1311260655470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311260655470 is a deficient number, since it is larger than the sum of its proper divisors (1049138458978).

1311260655470 is a wasteful number, since it uses less digits than its factorization.

1311260655470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218595.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 1311260655470 in words is "one trillion, three hundred eleven billion, two hundred sixty million, six hundred fifty-five thousand, four hundred seventy".