1213415302123 has 4 divisors (see below), whose sum is σ = 1214144958208. Its totient is φ = 1212685646040.

The previous prime is 1213415302097. The next prime is 1213415302129. The reversal of 1213415302123 is 3212035143121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213415302123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213415302091 and 1213415302100.

It is not an unprimeable number, because it can be changed into a prime (1213415302129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364825548 + ... + 364828873.

It is an arithmetic number, because the mean of its divisors is an integer number (303536239552).

Almost surely, 2^{1213415302123} is an apocalyptic number.

1213415302123 is a deficient number, since it is larger than the sum of its proper divisors (729656085).

1213415302123 is an equidigital number, since it uses as much as digits as its factorization.

1213415302123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729656084.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 1213415302123 in words is "one trillion, two hundred thirteen billion, four hundred fifteen million, three hundred two thousand, one hundred twenty-three".