1125668862121 has 8 divisors (see below), whose sum is σ = 1127148160320. Its totient is φ = 1124190533808.

The previous prime is 1125668862061. The next prime is 1125668862137. The reversal of 1125668862121 is 1212688665211.

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 1125668862121 - 2¹⁷ = 1125668731049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125668062121) 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, 2095060 + ... + 2576938.

It is an arithmetic number, because the mean of its divisors is an integer number (140893520040).

Almost surely, 2^{1125668862121} is an apocalyptic number.

It is an amenable number.

1125668862121 is a deficient number, since it is larger than the sum of its proper divisors (1479298199).

1125668862121 is a wasteful number, since it uses less digits than its factorization.

1125668862121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484943.

The product of its digits is 552960, while the sum is 49.

The spelling of 1125668862121 in words is "one trillion, one hundred twenty-five billion, six hundred sixty-eight million, eight hundred sixty-two thousand, one hundred twenty-one".