1123210101012 has 24 divisors (see below), whose sum is σ = 2639953671936. Its totient is φ = 371670495168.

The previous prime is 1123210101007. The next prime is 1123210101019. The reversal of 1123210101012 is 2101010123211.

It is a junction number, because it is equal to n+sod(n) for n = 1123210100982 and 1123210101000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123210101019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341607268 + ... + 341610555.

It is an arithmetic number, because the mean of its divisors is an integer number (109998069664).

Almost surely, 2^{1123210101012} is an apocalyptic number.

1123210101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123210101012 is an abundant number, since it is smaller than the sum of its proper divisors (1516743570924).

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

1123210101012 is a wasteful number, since it uses less digits than its factorization.

1123210101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683217967 (or 683217965 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1123210101012 its reverse (2101010123211), we get a palindrome (3224220224223).

The spelling of 1123210101012 in words is "one trillion, one hundred twenty-three billion, two hundred ten million, one hundred one thousand, twelve".