1323123131130 has 32 divisors (see below), whose sum is σ = 3175526030400. Its totient is φ = 352829444352.

The previous prime is 1323123131081. The next prime is 1323123131131. The reversal of 1323123131130 is 311313213231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323123131130.

It is not an unprimeable number, because it can be changed into a prime (1323123131131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5386941 + ... + 5627199.

It is an arithmetic number, because the mean of its divisors is an integer number (99235188450).

Almost surely, 2^{1323123131130} is an apocalyptic number.

1323123131130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323123131130 is an abundant number, since it is smaller than the sum of its proper divisors (1852402899270).

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

1323123131130 is a wasteful number, since it uses less digits than its factorization.

1323123131130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423838.

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

Adding to 1323123131130 its reverse (311313213231), we get a palindrome (1634436344361).

The spelling of 1323123131130 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred thirty".