1210123121233 has 16 divisors (see below), whose sum is σ = 1322059124736. Its totient is φ = 1100891695680.

The previous prime is 1210123121231. The next prime is 1210123121237. The reversal of 1210123121233 is 3321213210121.

It is a cyclic number.

It is not a de Polignac number, because 1210123121233 - 2¹ = 1210123121231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210123121231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2236135 + ... + 2724067.

It is an arithmetic number, because the mean of its divisors is an integer number (82628695296).

Almost surely, 2^{1210123121233} is an apocalyptic number.

1210123121233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1210123121233 is a deficient number, since it is larger than the sum of its proper divisors (111936003503).

1210123121233 is a wasteful number, since it uses less digits than its factorization.

1210123121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490704.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1210123121233 its reverse (3321213210121), we get a palindrome (4531336331354).

The spelling of 1210123121233 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, one hundred twenty-one thousand, two hundred thirty-three".