31301231003130 has 192 divisors, whose sum is σ = 84144341877120. Its totient is φ = 7443836674560.

The previous prime is 31301231003117. The next prime is 31301231003171. The reversal of 31301231003130 is 3130013210313.

It is a super-2 number, since 2×31301231003130² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31301231003097 and 31301231003106.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2427762964 + ... + 2427775856.

It is an arithmetic number, because the mean of its divisors is an integer number (438251780610).

Almost surely, 2^{31301231003130} is an apocalyptic number.

31301231003130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31301231003130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42072170938560).

31301231003130 is an abundant number, since it is smaller than the sum of its proper divisors (52843110873990).

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

31301231003130 is a wasteful number, since it uses less digits than its factorization.

31301231003130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25597 (or 25586 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31301231003130 its reverse (3130013210313), we get a palindrome (34431244213443).

The spelling of 31301231003130 in words is "thirty-one trillion, three hundred one billion, two hundred thirty-one million, three thousand, one hundred thirty".