1213142413121 has 16 divisors (see below), whose sum is σ = 1228257045888. Its totient is φ = 1198091088000.

The previous prime is 1213142413117. The next prime is 1213142413163.

It is a happy number.

1213142413121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1213142413121 - 2² = 1213142413117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213142413111) 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, 133439786 + ... + 133448876.

It is an arithmetic number, because the mean of its divisors is an integer number (76766065368).

Almost surely, 2^{1213142413121} is an apocalyptic number.

It is an amenable number.

1213142413121 is a deficient number, since it is larger than the sum of its proper divisors (15114632767).

1213142413121 is a wasteful number, since it uses less digits than its factorization.

1213142413121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12392.

The product of its digits is 1152, while the sum is 26.

The spelling of 1213142413121 in words is "one trillion, two hundred thirteen billion, one hundred forty-two million, four hundred thirteen thousand, one hundred twenty-one".