1210123023311 has 2 divisors, whose sum is σ = 1210123023312. Its totient is φ = 1210123023310.

The previous prime is 1210123023223. The next prime is 1210123023349. The reversal of 1210123023311 is 1133203210121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1133203210121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210123023311 - 2¹⁰ = 1210123022287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210123025311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605061511655 + 605061511656.

It is an arithmetic number, because the mean of its divisors is an integer number (605061511656).

Almost surely, 2^{1210123023311} is an apocalyptic number.

1210123023311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210123023311 is an equidigital number, since it uses as much as digits as its factorization.

1210123023311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1210123023311 its reverse (1133203210121), we get a palindrome (2343326233432).

The spelling of 1210123023311 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, twenty-three thousand, three hundred eleven".