1211023012230 has 96 divisors (see below), whose sum is σ = 3153541865760. Its totient is φ = 322439201280.

The previous prime is 1211023012223. The next prime is 1211023012289. The reversal of 1211023012230 is 322103201121.

1211023012230 is a `hidden beast` number, since 1 + 211 + 0 + 230 + 1 + 223 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184294845 + ... + 184301415.

It is an arithmetic number, because the mean of its divisors is an integer number (32849394435).

Almost surely, 2^{1211023012230} is an apocalyptic number.

1211023012230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211023012230 is an abundant number, since it is smaller than the sum of its proper divisors (1942518853530).

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

1211023012230 is a wasteful number, since it uses less digits than its factorization.

1211023012230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9446 (or 9443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1211023012230 its reverse (322103201121), we get a palindrome (1533126213351).

The spelling of 1211023012230 in words is "one trillion, two hundred eleven billion, twenty-three million, twelve thousand, two hundred thirty".