1367121342561 has 16 divisors (see below), whose sum is σ = 1996318000320. Its totient is φ = 827046025920.

The previous prime is 1367121342547. The next prime is 1367121342607. The reversal of 1367121342561 is 1652431217631.

It is a happy number.

It is not a de Polignac number, because 1367121342561 - 2¹¹ = 1367121340513 is a prime.

It is a super-2 number, since 2×1367121342561² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1367121342541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297068830 + ... + 297073431.

It is an arithmetic number, because the mean of its divisors is an integer number (124769875020).

Almost surely, 2^{1367121342561} is an apocalyptic number.

It is an amenable number.

1367121342561 is a deficient number, since it is larger than the sum of its proper divisors (629196657759).

1367121342561 is a wasteful number, since it uses less digits than its factorization.

1367121342561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594142336.

The product of its digits is 181440, while the sum is 42.

The spelling of 1367121342561 in words is "one trillion, three hundred sixty-seven billion, one hundred twenty-one million, three hundred forty-two thousand, five hundred sixty-one".