1210123012 has 36 divisors (see below), whose sum is σ = 2570581440. Its totient is φ = 496073424.

The previous prime is 1210123007. The next prime is 1210123021. The reversal of 1210123012 is 2103210121.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1210122983 and 1210123001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129712 + ... + 138727.

It is an arithmetic number, because the mean of its divisors is an integer number (71405040).

Almost surely, 2^1210123012 is an apocalyptic number.

It is an amenable number.

1210123012 is an abundant number, since it is smaller than the sum of its proper divisors (1360458428).

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

1210123012 is a wasteful number, since it uses less digits than its factorization.

1210123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268480 (or 268471 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1210123012 is about 34786.8223900948. The cubic root of 1210123012 is about 1065.6383462489.

Adding to 1210123012 its reverse (2103210121), we get a palindrome (3313333133).

The spelling of 1210123012 in words is "one billion, two hundred ten million, one hundred twenty-three thousand, twelve".