2100424923929 has 8 divisors (see below), whose sum is σ = 2101165810920. Its totient is φ = 2099684160000.

The previous prime is 2100424923923. The next prime is 2100424923931. The reversal of 2100424923929 is 9293294240012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1252806025 + 2099172117904 = 35395^2 + 1448852^2 .

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 2100424923929 - 2¹⁶ = 2100424858393 is a prime.

It is a super-2 number, since 2×2100424923929² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100424923923) 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, 45049229 + ... + 45095829.

It is an arithmetic number, because the mean of its divisors is an integer number (262645726365).

Almost surely, 2^{2100424923929} is an apocalyptic number.

It is an amenable number.

2100424923929 is a deficient number, since it is larger than the sum of its proper divisors (740886991).

2100424923929 is a wasteful number, since it uses less digits than its factorization.

2100424923929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61531.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 2100424923929 in words is "two trillion, one hundred billion, four hundred twenty-four million, nine hundred twenty-three thousand, nine hundred twenty-nine".