31301103320130 has 128 divisors (see below), whose sum is σ = 86502567997440. Its totient is φ = 7100564739840.

The previous prime is 31301103320027. The next prime is 31301103320143. The reversal of 31301103320130 is 3102330110313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 31301103320097 and 31301103320106.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83325187 + ... + 83699993.

It is an arithmetic number, because the mean of its divisors is an integer number (675801312480).

Almost surely, 2^{31301103320130} is an apocalyptic number.

31301103320130 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 31301103320130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43251283998720).

31301103320130 is an abundant number, since it is smaller than the sum of its proper divisors (55201464677310).

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

31301103320130 is a wasteful number, since it uses less digits than its factorization.

31301103320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377824.

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

Adding to 31301103320130 its reverse (3102330110313), we get a palindrome (34403433430443).

The spelling of 31301103320130 in words is "thirty-one trillion, three hundred one billion, one hundred three million, three hundred twenty thousand, one hundred thirty".