1231403240130 has 128 divisors (see below), whose sum is σ = 3596341248000. Its totient is φ = 269225998272.

The previous prime is 1231403240113. The next prime is 1231403240149. The reversal of 1231403240130 is 310423041321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231403240130.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2364850 + ... + 2838189.

It is an arithmetic number, because the mean of its divisors is an integer number (28096416000).

Almost surely, 2^{1231403240130} is an apocalyptic number.

1231403240130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231403240130 is an abundant number, since it is smaller than the sum of its proper divisors (2364938007870).

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

1231403240130 is a wasteful number, since it uses less digits than its factorization.

1231403240130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203093 (or 5203079 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1231403240130 its reverse (310423041321), we get a palindrome (1541826281451).

The spelling of 1231403240130 in words is "one trillion, two hundred thirty-one billion, four hundred three million, two hundred forty thousand, one hundred thirty".