1051204051999 has 8 divisors (see below), whose sum is σ = 1085558474880. Its totient is φ = 1016877417600.

The previous prime is 1051204051991. The next prime is 1051204052009. The reversal of 1051204051999 is 9991504021501.

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 1051204051999 - 2³ = 1051204051991 is a prime.

It is a super-2 number, since 2×1051204051999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051204051991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6870214 + ... + 7021555.

It is an arithmetic number, because the mean of its divisors is an integer number (135694809360).

Almost surely, 2^{1051204051999} is an apocalyptic number.

1051204051999 is a deficient number, since it is larger than the sum of its proper divisors (34354422881).

1051204051999 is a wasteful number, since it uses less digits than its factorization.

1051204051999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13894241.

The product of its (nonzero) digits is 145800, while the sum is 46.

The spelling of 1051204051999 in words is "one trillion, fifty-one billion, two hundred four million, fifty-one thousand, nine hundred ninety-nine".