1004423123551 has 8 divisors (see below), whose sum is σ = 1036910950400. Its totient is φ = 971940739320.

The previous prime is 1004423123549. The next prime is 1004423123563. The reversal of 1004423123551 is 1553213244001.

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 1004423123551 - 2¹ = 1004423123549 is a prime.

It is a super-2 number, since 2×1004423123551² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004423123581) 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, 983931 + ... + 1725388.

It is an arithmetic number, because the mean of its divisors is an integer number (129613868800).

Almost surely, 2^{1004423123551} is an apocalyptic number.

1004423123551 is a deficient number, since it is larger than the sum of its proper divisors (32487826849).

1004423123551 is a wasteful number, since it uses less digits than its factorization.

1004423123551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721309.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1004423123551 its reverse (1553213244001), we get a palindrome (2557636367552).

The spelling of 1004423123551 in words is "one trillion, four billion, four hundred twenty-three million, one hundred twenty-three thousand, five hundred fifty-one".