100210023 has 12 divisors (see below), whose sum is σ = 148660408. Its totient is φ = 65000880.

The previous prime is 100210001. The next prime is 100210043. The reversal of 100210023 is 320012001.

It is a happy number.

It is not a de Polignac number, because 100210023 - 2⁶ = 100209959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100209987 and 100210014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100210043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150133 + ... + 150798.

Almost surely, 2^100210023 is an apocalyptic number.

100210023 is a deficient number, since it is larger than the sum of its proper divisors (48450385).

100210023 is a wasteful number, since it uses less digits than its factorization.

100210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300974 (or 300971 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100210023 is about 10010.4956420749. The cubic root of 100210023 is about 464.4836029425.

Adding to 100210023 its reverse (320012001), we get a palindrome (420222024).

It can be divided in two parts, 1002 and 10023, that added together give a square (11025 = 105²).

The spelling of 100210023 in words is "one hundred million, two hundred ten thousand, twenty-three".