32001100121 has 4 divisors (see below), whose sum is σ = 32023125732. Its totient is φ = 31979074512.

The previous prime is 32001100111. The next prime is 32001100123. The reversal of 32001100121 is 12100110023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12100110023 = 211 ⋅57346493.

It can be written as a sum of positive squares in 2 ways, for example, as 25547227225 + 6453872896 = 159835^2 + 80336^2 .

It is a cyclic number.

It is not a de Polignac number, because 32001100121 - 2⁶ = 32001100057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32001100123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11010626 + ... + 11013531.

It is an arithmetic number, because the mean of its divisors is an integer number (8005781433).

Almost surely, 2^32001100121 is an apocalyptic number.

It is an amenable number.

32001100121 is a deficient number, since it is larger than the sum of its proper divisors (22025611).

32001100121 is a wasteful number, since it uses less digits than its factorization.

32001100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22025610.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 32001100121 its reverse (12100110023), we get a palindrome (44101210144).

The spelling of 32001100121 in words is "thirty-two billion, one million, one hundred thousand, one hundred twenty-one".