121320230130 has 288 divisors, whose sum is σ = 365920027200. Its totient is φ = 27790076160.

The previous prime is 121320230107. The next prime is 121320230173. The reversal of 121320230130 is 31032023121.

121320230130 is a `hidden beast` number, since 12 + 1 + 320 + 2 + 301 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 146698777 + ... + 146699603.

It is an arithmetic number, because the mean of its divisors is an integer number (1270555650).

Almost surely, 2^121320230130 is an apocalyptic number.

121320230130 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 121320230130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182960013600).

121320230130 is an abundant number, since it is smaller than the sum of its proper divisors (244599797070).

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

121320230130 is a wasteful number, since it uses less digits than its factorization.

121320230130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121320230130 its reverse (31032023121), we get a palindrome (152352253251).

The spelling of 121320230130 in words is "one hundred twenty-one billion, three hundred twenty million, two hundred thirty thousand, one hundred thirty".