100321429 has 4 divisors (see below), whose sum is σ = 108038476. Its totient is φ = 92604384.

The previous prime is 100321391. The next prime is 100321457. The reversal of 100321429 is 924123001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924123001 = 16981 ⋅54421.

It can be written as a sum of positive squares in 2 ways, for example, as 39715204 + 60606225 = 6302^2 + 7785^2 .

It is a cyclic number.

It is not a de Polignac number, because 100321429 - 2¹³ = 100313237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100321499) 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, 3858504 + ... + 3858529.

It is an arithmetic number, because the mean of its divisors is an integer number (27009619).

Almost surely, 2^100321429 is an apocalyptic number.

It is an amenable number.

100321429 is a deficient number, since it is larger than the sum of its proper divisors (7717047).

100321429 is an equidigital number, since it uses as much as digits as its factorization.

100321429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717046.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 100321429 is about 10016.0585561387. The cubic root of 100321429 is about 464.6556652263.

The spelling of 100321429 in words is "one hundred million, three hundred twenty-one thousand, four hundred twenty-nine".