31503052030 has 16 divisors (see below), whose sum is σ = 59689993680. Its totient is φ = 11937998592.

The previous prime is 31503052013. The next prime is 31503052037. The reversal of 31503052030 is 3025030513.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31503051992 and 31503052010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31503052037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82902579 + ... + 82902958.

It is an arithmetic number, because the mean of its divisors is an integer number (3730624605).

Almost surely, 2^31503052030 is an apocalyptic number.

31503052030 is a deficient number, since it is larger than the sum of its proper divisors (28186941650).

31503052030 is a wasteful number, since it uses less digits than its factorization.

31503052030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165805563.

The product of its (nonzero) digits is 1350, while the sum is 22.

Adding to 31503052030 its reverse (3025030513), we get a palindrome (34528082543).

The spelling of 31503052030 in words is "thirty-one billion, five hundred three million, fifty-two thousand, thirty".