103421131 has 4 divisors (see below), whose sum is σ = 112823064. Its totient is φ = 94019200.

The previous prime is 103421119. The next prime is 103421189. The reversal of 103421131 is 131124301.

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

It is not a de Polignac number, because 103421131 - 2¹⁷ = 103290059 is a prime.

It is a super-2 number, since 2×103421131² = 21391860674638322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103421231) 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, 4700950 + ... + 4700971.

It is an arithmetic number, because the mean of its divisors is an integer number (28205766).

Almost surely, 2^103421131 is an apocalyptic number.

103421131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103421131 is a deficient number, since it is larger than the sum of its proper divisors (9401933).

103421131 is an equidigital number, since it uses as much as digits as its factorization.

103421131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9401932.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 103421131 is about 10169.6180360916. The cubic root of 103421131 is about 469.3928042487.

Adding to 103421131 its reverse (131124301), we get a palindrome (234545432).

The spelling of 103421131 in words is "one hundred three million, four hundred twenty-one thousand, one hundred thirty-one".