31422320130 has 64 divisors (see below), whose sum is σ = 77975912448. Its totient is φ = 8095481280.

The previous prime is 31422320081. The next prime is 31422320179. The reversal of 31422320130 is 3102322413.

It is an interprime number because it is at equal distance from previous prime (31422320081) and next prime (31422320179).

It is a junction number, because it is equal to n+sod(n) for n = 31422320097 and 31422320106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536679 + ... + 592341.

It is an arithmetic number, because the mean of its divisors is an integer number (1218373632).

Almost surely, 2^31422320130 is an apocalyptic number.

31422320130 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 31422320130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38987956224).

31422320130 is an abundant number, since it is smaller than the sum of its proper divisors (46553592318).

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

31422320130 is a wasteful number, since it uses less digits than its factorization.

31422320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56311.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31422320130 its reverse (3102322413), we get a palindrome (34524642543).

The spelling of 31422320130 in words is "thirty-one billion, four hundred twenty-two million, three hundred twenty thousand, one hundred thirty".