31103300030 has 32 divisors (see below), whose sum is σ = 61318954368. Its totient is φ = 11265220000.

The previous prime is 31103300003. The next prime is 31103300069. The reversal of 31103300030 is 3000330113.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31103299978 and 31103300014.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 535652 + ... + 590871.

It is an arithmetic number, because the mean of its divisors is an integer number (1916217324).

Almost surely, 2^31103300030 is an apocalyptic number.

31103300030 is a deficient number, since it is larger than the sum of its proper divisors (30215654338).

31103300030 is a wasteful number, since it uses less digits than its factorization.

31103300030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126792.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31103300030 its reverse (3000330113), we get a palindrome (34103630143).

It can be divided in two parts, 31103 and 300030, that added together give a palindrome (331133).

The spelling of 31103300030 in words is "thirty-one billion, one hundred three million, three hundred thousand, thirty".