100220523 has 32 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 59688960.

The previous prime is 100220513. The next prime is 100220537. The reversal of 100220523 is 325022001.

It is not a de Polignac number, because 100220523 - 2⁴ = 100220507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100220513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372433 + ... + 372701.

It is an arithmetic number, because the mean of its divisors is an integer number (4643730).

Almost surely, 2^100220523 is an apocalyptic number.

100220523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100220523 is a deficient number, since it is larger than the sum of its proper divisors (48378837).

100220523 is a wasteful number, since it uses less digits than its factorization.

100220523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 100220523 is about 10011.0200778942. The cubic root of 100220523 is about 464.4998252303.

Adding to 100220523 its reverse (325022001), we get a palindrome (425242524).

The spelling of 100220523 in words is "one hundred million, two hundred twenty thousand, five hundred twenty-three".