1020104455623 has 8 divisors (see below), whose sum is σ = 1483788299136. Its totient is φ = 618245124600.

The previous prime is 1020104455621. The next prime is 1020104455627. The reversal of 1020104455623 is 3265544010201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020104455623 - 2¹ = 1020104455621 is a prime.

It is a super-2 number, since 2×1020104455623² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 30912256231 = 1020104455623 / (1 + 0 + 2 + 0 + 1 + 0 + 4 + 4 + 5 + 5 + 6 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020104455621) 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, 15456128083 + ... + 15456128148.

It is an arithmetic number, because the mean of its divisors is an integer number (185473537392).

Almost surely, 2^{1020104455623} is an apocalyptic number.

1020104455623 is a deficient number, since it is larger than the sum of its proper divisors (463683843513).

1020104455623 is a wasteful number, since it uses less digits than its factorization.

1020104455623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30912256245.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1020104455623 its reverse (3265544010201), we get a palindrome (4285648465824).

The spelling of 1020104455623 in words is "one trillion, twenty billion, one hundred four million, four hundred fifty-five thousand, six hundred twenty-three".