1143425021551 has 8 divisors (see below), whose sum is σ = 1186204340880. Its totient is φ = 1100869093632.

The previous prime is 1143425021447. The next prime is 1143425021593. The reversal of 1143425021551 is 1551205243411.

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 1143425021551 - 2¹⁹ = 1143424497263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143425051551) 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, 55837425 + ... + 55857898.

It is an arithmetic number, because the mean of its divisors is an integer number (148275542610).

Almost surely, 2^{1143425021551} is an apocalyptic number.

1143425021551 is a deficient number, since it is larger than the sum of its proper divisors (42779319329).

1143425021551 is a wasteful number, since it uses less digits than its factorization.

1143425021551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111695705.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1143425021551 in words is "one trillion, one hundred forty-three billion, four hundred twenty-five million, twenty-one thousand, five hundred fifty-one".