103402031 has 2 divisors, whose sum is σ = 103402032. Its totient is φ = 103402030.

The previous prime is 103402001. The next prime is 103402049. The reversal of 103402031 is 130204301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103402031 - 2⁶ = 103401967 is a prime.

It is a super-2 number, since 2×103402031² = 21383960029849922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103401997 and 103402015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103402001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701015 + 51701016.

It is an arithmetic number, because the mean of its divisors is an integer number (51701016).

Almost surely, 2^103402031 is an apocalyptic number.

103402031 is a deficient number, since it is larger than the sum of its proper divisors (1).

103402031 is an equidigital number, since it uses as much as digits as its factorization.

103402031 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 103402031 is about 10168.6789210792. The cubic root of 103402031 is about 469.3639063680.

Adding to 103402031 its reverse (130204301), we get a palindrome (233606332).

The spelling of 103402031 in words is "one hundred three million, four hundred two thousand, thirty-one".