1351007305561 has 8 divisors (see below), whose sum is σ = 1351627827264. Its totient is φ = 1350386927760.

The previous prime is 1351007305553. The next prime is 1351007305691. The reversal of 1351007305561 is 1655037001531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1351007305561 - 2³ = 1351007305553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1351007305561.

It is not an unprimeable number, because it can be changed into a prime (1351007305061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21637990 + ... + 21700336.

It is an arithmetic number, because the mean of its divisors is an integer number (168953478408).

Almost surely, 2^{1351007305561} is an apocalyptic number.

It is an amenable number.

1351007305561 is a deficient number, since it is larger than the sum of its proper divisors (620521703).

1351007305561 is an equidigital number, since it uses as much as digits as its factorization.

1351007305561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71951.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 1351007305561 in words is "one trillion, three hundred fifty-one billion, seven million, three hundred five thousand, five hundred sixty-one".