1200111979342 has 8 divisors (see below), whose sum is σ = 1821856739976. Its totient is φ = 592826399352.

The previous prime is 1200111979301. The next prime is 1200111979357. The reversal of 1200111979342 is 2439791110021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1200111979295 and 1200111979304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3614794953 + ... + 3614795284.

It is an arithmetic number, because the mean of its divisors is an integer number (227732092497).

Almost surely, 2^{1200111979342} is an apocalyptic number.

1200111979342 is a deficient number, since it is larger than the sum of its proper divisors (621744760634).

1200111979342 is an equidigital number, since it uses as much as digits as its factorization.

1200111979342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229590322.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 1200111979342 in words is "one trillion, two hundred billion, one hundred eleven million, nine hundred seventy-nine thousand, three hundred forty-two".