1212786936123 has 32 divisors (see below), whose sum is σ = 1869038945280. Its totient is φ = 685154426880.

The previous prime is 1212786936091. The next prime is 1212786936139. The reversal of 1212786936123 is 3216396872121.

It is not a de Polignac number, because 1212786936123 - 2⁵ = 1212786936091 is a prime.

It is a super-2 number, since 2×1212786936123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212786936143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18389818 + ... + 18455648.

It is an arithmetic number, because the mean of its divisors is an integer number (58407467040).

Almost surely, 2^{1212786936123} is an apocalyptic number.

1212786936123 is a deficient number, since it is larger than the sum of its proper divisors (656252009157).

1212786936123 is an equidigital number, since it uses as much as digits as its factorization.

1212786936123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75787.

The product of its digits is 1306368, while the sum is 51.

The spelling of 1212786936123 in words is "one trillion, two hundred twelve billion, seven hundred eighty-six million, nine hundred thirty-six thousand, one hundred twenty-three".