1210123213 has 8 divisors (see below), whose sum is σ = 1304100000. Its totient is φ = 1116273648.

The previous prime is 1210123193. The next prime is 1210123259. The reversal of 1210123213 is 3123210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210123213 - 2⁵ = 1210123181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210123273) 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, 11563 + ... + 50536.

It is an arithmetic number, because the mean of its divisors is an integer number (163012500).

Almost surely, 2^1210123213 is an apocalyptic number.

1210123213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1210123213 is a deficient number, since it is larger than the sum of its proper divisors (93976787).

1210123213 is a wasteful number, since it uses less digits than its factorization.

1210123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63611.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1210123213 is about 34786.8252791197. The cubic root of 1210123213 is about 1065.6384052493.

Adding to 1210123213 its reverse (3123210121), we get a palindrome (4333333334).

The spelling of 1210123213 in words is "one billion, two hundred ten million, one hundred twenty-three thousand, two hundred thirteen".