1311045231461 has 32 divisors (see below), whose sum is σ = 1608264253440. Its totient is φ = 1043152171776.

The previous prime is 1311045231449. The next prime is 1311045231467. The reversal of 1311045231461 is 1641325401131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311045231461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311045231467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8829116 + ... + 8976378.

It is an arithmetic number, because the mean of its divisors is an integer number (50258257920).

Almost surely, 2^{1311045231461} is an apocalyptic number.

It is an amenable number.

1311045231461 is a deficient number, since it is larger than the sum of its proper divisors (297219021979).

1311045231461 is a wasteful number, since it uses less digits than its factorization.

1311045231461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148313.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 1311045231461 in words is "one trillion, three hundred eleven billion, forty-five million, two hundred thirty-one thousand, four hundred sixty-one".