21003201324129 has 16 divisors (see below), whose sum is σ = 29255916662784. Its totient is φ = 13387193998800.

The previous prime is 21003201324037. The next prime is 21003201324143. The reversal of 21003201324129 is 92142310230012.

It is not a de Polignac number, because 21003201324129 - 2⁸ = 21003201323873 is a prime.

It is a super-2 number, since 2×21003201324129² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003201324096 and 21003201324105.

It is not an unprimeable number, because it can be changed into a prime (21003201324199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360479477 + ... + 1360494914.

It is an arithmetic number, because the mean of its divisors is an integer number (1828494791424).

Almost surely, 2^{21003201324129} is an apocalyptic number.

It is an amenable number.

21003201324129 is a deficient number, since it is larger than the sum of its proper divisors (8252715338655).

21003201324129 is a wasteful number, since it uses less digits than its factorization.

21003201324129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720974508.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 21003201324129 in words is "twenty-one trillion, three billion, two hundred one million, three hundred twenty-four thousand, one hundred twenty-nine".