103203001031 has 4 divisors (see below), whose sum is σ = 111141693432. Its totient is φ = 95264308632.

The previous prime is 103203001021. The next prime is 103203001061. The reversal of 103203001031 is 130100302301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103203001031 is a prime.

It is a super-2 number, since 2×103203001031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103203000997 and 103203001015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103203001001) 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, 3969346181 + ... + 3969346206.

It is an arithmetic number, because the mean of its divisors is an integer number (27785423358).

Almost surely, 2^103203001031 is an apocalyptic number.

103203001031 is a deficient number, since it is larger than the sum of its proper divisors (7938692401).

103203001031 is an equidigital number, since it uses as much as digits as its factorization.

103203001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7938692400.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 103203001031 its reverse (130100302301), we get a palindrome (233303303332).

The spelling of 103203001031 in words is "one hundred three billion, two hundred three million, one thousand, thirty-one".