1213012069979 has 2 divisors, whose sum is σ = 1213012069980. Its totient is φ = 1213012069978.

The previous prime is 1213012069961. The next prime is 1213012069981. The reversal of 1213012069979 is 9799602103121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213012069979 is a prime.

Together with 1213012069981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1213012069949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606506034989 + 606506034990.

It is an arithmetic number, because the mean of its divisors is an integer number (606506034990).

Almost surely, 2^{1213012069979} is an apocalyptic number.

1213012069979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213012069979 is an equidigital number, since it uses as much as digits as its factorization.

1213012069979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 50.

The spelling of 1213012069979 in words is "one trillion, two hundred thirteen billion, twelve million, sixty-nine thousand, nine hundred seventy-nine".