103202431 has 4 divisors (see below), whose sum is σ = 103296600. Its totient is φ = 103108264.

The previous prime is 103202419. The next prime is 103202443. The reversal of 103202431 is 134202301.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (103202419) and next prime (103202443).

It is a cyclic number.

It is not a de Polignac number, because 103202431 - 2⁹ = 103201919 is a prime.

It is a super-2 number, since 2×103202431² = 21301483528619522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103202401) 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, 45421 + ... + 47638.

It is an arithmetic number, because the mean of its divisors is an integer number (25824150).

Almost surely, 2^103202431 is an apocalyptic number.

103202431 is a deficient number, since it is larger than the sum of its proper divisors (94169).

103202431 is an equidigital number, since it uses as much as digits as its factorization.

103202431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94168.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 103202431 is about 10158.8597293200. The cubic root of 103202431 is about 469.0617028215.

Adding to 103202431 its reverse (134202301), we get a palindrome (237404732).

The spelling of 103202431 in words is "one hundred three million, two hundred two thousand, four hundred thirty-one".