12401021130 has 64 divisors (see below), whose sum is σ = 30511143936. Its totient is φ = 3223872000.

The previous prime is 12401021107. The next prime is 12401021153. The reversal of 12401021130 is 3112010421.

It is an interprime number because it is at equal distance from previous prime (12401021107) and next prime (12401021153).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

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, 2138535 + ... + 2144325.

It is an arithmetic number, because the mean of its divisors is an integer number (476736624).

Almost surely, 2^12401021130 is an apocalyptic number.

12401021130 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 12401021130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15255571968).

12401021130 is an abundant number, since it is smaller than the sum of its proper divisors (18110122806).

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

12401021130 is a wasteful number, since it uses less digits than its factorization.

12401021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12401021130 its reverse (3112010421), we get a palindrome (15513031551).

The spelling of 12401021130 in words is "twelve billion, four hundred one million, twenty-one thousand, one hundred thirty".