103131031302 has 32 divisors (see below), whose sum is σ = 246809307360. Its totient is φ = 31732624800.

The previous prime is 103131031277. The next prime is 103131031307. The reversal of 103131031302 is 203130131301.

It is a happy number.

103131031302 is a `hidden beast` number, since 10 + 31 + 310 + 313 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103131031307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73454449 + ... + 73455852.

It is an arithmetic number, because the mean of its divisors is an integer number (7712790855).

Almost surely, 2^103131031302 is an apocalyptic number.

103131031302 is an abundant number, since it is smaller than the sum of its proper divisors (143678276058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103131031302 is a wasteful number, since it uses less digits than its factorization.

103131031302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146910325 (or 146910319 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 103131031302 its reverse (203130131301), we get a palindrome (306261162603).

Subtracting 103131031302 from its reverse (203130131301), we obtain a palindrome (99999099999).

The spelling of 103131031302 in words is "one hundred three billion, one hundred thirty-one million, thirty-one thousand, three hundred two".