101145403 has 4 divisors (see below), whose sum is σ = 101177680. Its totient is φ = 101113128.

The previous prime is 101145391. The next prime is 101145413. The reversal of 101145403 is 304541101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304541101 = 19 ⋅16028479.

It is a cyclic number.

It is not a de Polignac number, because 101145403 - 2⁵ = 101145371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101145413) 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, 10863 + ... + 17896.

It is an arithmetic number, because the mean of its divisors is an integer number (25294420).

Almost surely, 2^101145403 is an apocalyptic number.

101145403 is a deficient number, since it is larger than the sum of its proper divisors (32277).

101145403 is an equidigital number, since it uses as much as digits as its factorization.

101145403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32276.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 101145403 is about 10057.1070890192. The cubic root of 101145403 is about 465.9243232118.

Adding to 101145403 its reverse (304541101), we get a palindrome (405686504).

The spelling of 101145403 in words is "one hundred one million, one hundred forty-five thousand, four hundred three".