103311321630 has 128 divisors (see below), whose sum is σ = 272290636800. Its totient is φ = 24878684160.

The previous prime is 103311321623. The next prime is 103311321637. The reversal of 103311321630 is 36123113301.

It is an interprime number because it is at equal distance from previous prime (103311321623) and next prime (103311321637).

It is a self number, because there is not a number n which added to its sum of digits gives 103311321630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103311321637) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66522934 + ... + 66524486.

It is an arithmetic number, because the mean of its divisors is an integer number (2127270600).

Almost surely, 2^103311321630 is an apocalyptic number.

103311321630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103311321630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136145318400).

103311321630 is an abundant number, since it is smaller than the sum of its proper divisors (168979315170).

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

103311321630 is a wasteful number, since it uses less digits than its factorization.

103311321630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 103311321630 its reverse (36123113301), we get a palindrome (139434434931).

The spelling of 103311321630 in words is "one hundred three billion, three hundred eleven million, three hundred twenty-one thousand, six hundred thirty".