1211051672047 has 8 divisors (see below), whose sum is σ = 1384362146816. Its totient is φ = 1037816970552.

The previous prime is 1211051672041. The next prime is 1211051672059. The reversal of 1211051672047 is 7402761501121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211051672047 - 2³⁵ = 1176691933679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211051671997 and 1211051672015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211051672041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18909063 + ... + 18973000.

It is an arithmetic number, because the mean of its divisors is an integer number (173045268352).

Almost surely, 2^{1211051672047} is an apocalyptic number.

1211051672047 is a deficient number, since it is larger than the sum of its proper divisors (173310474769).

1211051672047 is an equidigital number, since it uses as much as digits as its factorization.

1211051672047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37886637.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 1211051672047 in words is "one trillion, two hundred eleven billion, fifty-one million, six hundred seventy-two thousand, forty-seven".