21430045345104 has 80 divisors (see below), whose sum is σ = 67104182408640. Its totient is φ = 6493953133440.

The previous prime is 21430045345097. The next prime is 21430045345117. The reversal of 21430045345104 is 40154354003412.

21430045345104 is a `hidden beast` number, since 2 + 1 + 4 + 300 + 4 + 5 + 345 + 1 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2254840087 + ... + 2254849590.

It is an arithmetic number, because the mean of its divisors is an integer number (838802280108).

Almost surely, 2^{21430045345104} is an apocalyptic number.

21430045345104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21430045345104 is an abundant number, since it is smaller than the sum of its proper divisors (45674137063536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21430045345104 is a wasteful number, since it uses less digits than its factorization.

21430045345104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509689705 (or 4509689693 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 21430045345104 its reverse (40154354003412), we get a palindrome (61584399348516).

The spelling of 21430045345104 in words is "twenty-one trillion, four hundred thirty billion, forty-five million, three hundred forty-five thousand, one hundred four".