1211213023130 has 64 divisors (see below), whose sum is σ = 2529381416832. Its totient is φ = 412706519040.

The previous prime is 1211213023039. The next prime is 1211213023187. The reversal of 1211213023130 is 313203121121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1002179 + ... + 1851158.

It is an arithmetic number, because the mean of its divisors is an integer number (39521584638).

Almost surely, 2^{1211213023130} is an apocalyptic number.

1211213023130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211213023130 is an abundant number, since it is smaller than the sum of its proper divisors (1318168393702).

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

1211213023130 is a wasteful number, since it uses less digits than its factorization.

1211213023130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853599.

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

Adding to 1211213023130 its reverse (313203121121), we get a palindrome (1524416144251).

The spelling of 1211213023130 in words is "one trillion, two hundred eleven billion, two hundred thirteen million, twenty-three thousand, one hundred thirty".