1131220131230 has 16 divisors (see below), whose sum is σ = 2327081412960. Its totient is φ = 387846902112.

The previous prime is 1131220131229. The next prime is 1131220131281. The reversal of 1131220131230 is 321310221311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8080143725 + ... + 8080143864.

It is an arithmetic number, because the mean of its divisors is an integer number (145442588310).

Almost surely, 2^{1131220131230} is an apocalyptic number.

1131220131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131220131230 is an abundant number, since it is smaller than the sum of its proper divisors (1195861281730).

1131220131230 is a wasteful number, since it uses less digits than its factorization.

1131220131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160287603.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131220131230 its reverse (321310221311), we get a palindrome (1452530352541).

The spelling of 1131220131230 in words is "one trillion, one hundred thirty-one billion, two hundred twenty million, one hundred thirty-one thousand, two hundred thirty".