104203031 has 2 divisors, whose sum is σ = 104203032. Its totient is φ = 104203030.

The previous prime is 104203009. The next prime is 104203037. The reversal of 104203031 is 130302401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104203031 is a prime.

It is a super-2 number, since 2×104203031² = 21716543339173922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 104202997 and 104203015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104203037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52101515 + 52101516.

It is an arithmetic number, because the mean of its divisors is an integer number (52101516).

Almost surely, 2^104203031 is an apocalyptic number.

104203031 is a deficient number, since it is larger than the sum of its proper divisors (1).

104203031 is an equidigital number, since it uses as much as digits as its factorization.

104203031 is an evil number, because the sum of its binary digits is even.

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

The square root of 104203031 is about 10207.9885873761. The cubic root of 104203031 is about 470.5727603070.

Adding to 104203031 its reverse (130302401), we get a palindrome (234505432).

The spelling of 104203031 in words is "one hundred four million, two hundred three thousand, thirty-one".