1056111049973 has 4 divisors (see below), whose sum is σ = 1206984057120. Its totient is φ = 905238042828.

The previous prime is 1056111049969. The next prime is 1056111049979. The reversal of 1056111049973 is 3799401116501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1056111049973 - 2² = 1056111049969 is a prime.

It is a super-2 number, since 2×1056111049973² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056111049979) 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, 75436503563 + ... + 75436503576.

It is an arithmetic number, because the mean of its divisors is an integer number (301746014280).

Almost surely, 2^{1056111049973} is an apocalyptic number.

It is an amenable number.

1056111049973 is a deficient number, since it is larger than the sum of its proper divisors (150873007147).

1056111049973 is an equidigital number, since it uses as much as digits as its factorization.

1056111049973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150873007146.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 1056111049973 in words is "one trillion, fifty-six billion, one hundred eleven million, forty-nine thousand, nine hundred seventy-three".