101023403 has 4 divisors (see below), whose sum is σ = 108794448. Its totient is φ = 93252360.

The previous prime is 101023397. The next prime is 101023411. The reversal of 101023403 is 304320101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101023403 - 2⁶ = 101023339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101023423) 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, 3885503 + ... + 3885528.

It is an arithmetic number, because the mean of its divisors is an integer number (27198612).

Almost surely, 2^101023403 is an apocalyptic number.

101023403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101023403 is a deficient number, since it is larger than the sum of its proper divisors (7771045).

101023403 is an equidigital number, since it uses as much as digits as its factorization.

101023403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771044.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 101023403 is about 10051.0398964485. The cubic root of 101023403 is about 465.7369176374.

Adding to 101023403 its reverse (304320101), we get a palindrome (405343504).

The spelling of 101023403 in words is "one hundred one million, twenty-three thousand, four hundred three".