1213246111601 has 8 divisors (see below), whose sum is σ = 1213849792680. Its totient is φ = 1212642557568.

The previous prime is 1213246111579. The next prime is 1213246111607. The reversal of 1213246111601 is 1061116423121.

It can be written as a sum of positive squares in 4 ways, for example, as 1003483027600 + 209763084001 = 1001740^2 + 457999^2 .

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 1213246111601 - 2²² = 1213241917297 is a prime.

It is a super-2 number, since 2×1213246111601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213246111607) 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, 23102165 + ... + 23154621.

It is an arithmetic number, because the mean of its divisors is an integer number (151731224085).

Almost surely, 2^{1213246111601} is an apocalyptic number.

It is an amenable number.

1213246111601 is a deficient number, since it is larger than the sum of its proper divisors (603681079).

1213246111601 is an equidigital number, since it uses as much as digits as its factorization.

1213246111601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63523.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1213246111601 in words is "one trillion, two hundred thirteen billion, two hundred forty-six million, one hundred eleven thousand, six hundred one".