31321110030 has 64 divisors (see below), whose sum is σ = 85930149888. Its totient is φ = 7157376000.

The previous prime is 31321109849. The next prime is 31321110031. The reversal of 31321110030 is 3001112313.

It is a super-2 number, since 2×31321110030² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31321109991 and 31321110009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321110031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982014 + ... + 1013406.

It is an arithmetic number, because the mean of its divisors is an integer number (1342658592).

Almost surely, 2^31321110030 is an apocalyptic number.

31321110030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31321110030 is an abundant number, since it is smaller than the sum of its proper divisors (54609039858).

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

31321110030 is a wasteful number, since it uses less digits than its factorization.

31321110030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36161.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31321110030 its reverse (3001112313), we get a palindrome (34322222343).

The spelling of 31321110030 in words is "thirty-one billion, three hundred twenty-one million, one hundred ten thousand, thirty".