100400334423401 has 16 divisors (see below), whose sum is σ = 107081755481088. Its totient is φ = 93985722667200.

The previous prime is 100400334423397. The next prime is 100400334423437. The reversal of 100400334423401 is 104324433004001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100400334423401 - 2² = 100400334423397 is a prime.

It is a super-2 number, since 2×100400334423401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100400339423401) 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, 430220906 + ... + 430454211.

It is an arithmetic number, because the mean of its divisors is an integer number (6692609717568).

Almost surely, 2^{100400334423401} is an apocalyptic number.

It is an amenable number.

100400334423401 is a deficient number, since it is larger than the sum of its proper divisors (6681421057687).

100400334423401 is an equidigital number, since it uses as much as digits as its factorization.

100400334423401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860675272.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 100400334423401 its reverse (104324433004001), we get a palindrome (204724767427402).

The spelling of 100400334423401 in words is "one hundred trillion, four hundred billion, three hundred thirty-four million, four hundred twenty-three thousand, four hundred one".