102031403 has 2 divisors, whose sum is σ = 102031404. Its totient is φ = 102031402.

The previous prime is 102031393. The next prime is 102031409. The reversal of 102031403 is 304130201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102031403 - 2⁶ = 102031339 is a prime.

It is not a weakly prime, because it can be changed into another prime (102031409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51015701 + 51015702.

It is an arithmetic number, because the mean of its divisors is an integer number (51015702).

Almost surely, 2^102031403 is an apocalyptic number.

102031403 is a deficient number, since it is larger than the sum of its proper divisors (1).

102031403 is an equidigital number, since it uses as much as digits as its factorization.

102031403 is an odious number, because the sum of its binary digits is odd.

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

The square root of 102031403 is about 10101.0594988843. The cubic root of 102031403 is about 467.2808173074.

Adding to 102031403 its reverse (304130201), we get a palindrome (406161604).

It can be divided in two parts, 1020 and 31403, that added together give a palindrome (32423).

The spelling of 102031403 in words is "one hundred two million, thirty-one thousand, four hundred three".