103505142331 has 12 divisors (see below), whose sum is σ = 108302571832. Its totient is φ = 98905653504.

The previous prime is 103505142287. The next prime is 103505142359. The reversal of 103505142331 is 133241505301.

It is a happy number.

It is not a de Polignac number, because 103505142331 - 2⁹ = 103505141819 is a prime.

It is a super-2 number, since 2×103505142331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103505142331.

It is not an unprimeable number, because it can be changed into a prime (103505142361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552825 + ... + 715978.

Almost surely, 2^103505142331 is an apocalyptic number.

103505142331 is a deficient number, since it is larger than the sum of its proper divisors (4797429501).

103505142331 is an equidigital number, since it uses as much as digits as its factorization.

103505142331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268958 (or 1268929 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 103505142331 its reverse (133241505301), we get a palindrome (236746647632).

The spelling of 103505142331 in words is "one hundred three billion, five hundred five million, one hundred forty-two thousand, three hundred thirty-one".