21100233001 has 8 divisors (see below), whose sum is σ = 22233759680. Its totient is φ = 19969005168.

The previous prime is 21100232983. The next prime is 21100233019. The reversal of 21100233001 is 10033200112.

It is an interprime number because it is at equal distance from previous prime (21100232983) and next prime (21100233019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21100233001 - 2¹¹ = 21100230953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21100233031) 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, 555846 + ... + 592591.

It is an arithmetic number, because the mean of its divisors is an integer number (2779219960).

Almost surely, 2^21100233001 is an apocalyptic number.

It is an amenable number.

21100233001 is a deficient number, since it is larger than the sum of its proper divisors (1133526679).

21100233001 is a wasteful number, since it uses less digits than its factorization.

21100233001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149423.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21100233001 its reverse (10033200112), we get a palindrome (31133433113).

The spelling of 21100233001 in words is "twenty-one billion, one hundred million, two hundred thirty-three thousand, one".