1210123102012 has 144 divisors (see below), whose sum is σ = 2453119159680. Its totient is φ = 521198536320.

The previous prime is 1210123101997. The next prime is 1210123102057. The reversal of 1210123102012 is 2102013210121.

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, 266134323 + ... + 266138869.

It is an arithmetic number, because the mean of its divisors is an integer number (17035549720).

Almost surely, 2^{1210123102012} is an apocalyptic number.

It is an amenable number.

1210123102012 is an abundant number, since it is smaller than the sum of its proper divisors (1242996057668).

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

1210123102012 is a wasteful number, since it uses less digits than its factorization.

1210123102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1210123102012 its reverse (2102013210121), we get a palindrome (3312136312133).

The spelling of 1210123102012 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, one hundred two thousand, twelve".