1210120023 has 12 divisors (see below), whose sum is σ = 1876921080. Its totient is φ = 691497072.

The previous prime is 1210120003. The next prime is 1210120049. The reversal of 1210120023 is 3200210121.

It is not a de Polignac number, because 1210120023 - 2⁵ = 1210119991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210119990 and 1210120008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210120003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4115908 + ... + 4116201.

It is an arithmetic number, because the mean of its divisors is an integer number (156410090).

Almost surely, 2^1210120023 is an apocalyptic number.

1210120023 is a deficient number, since it is larger than the sum of its proper divisors (666801057).

1210120023 is an equidigital number, since it uses as much as digits as its factorization.

1210120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232126 (or 8232119 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210120023 is about 34786.7794283978. The cubic root of 1210120023 is about 1065.6374688737.

Adding to 1210120023 its reverse (3200210121), we get a palindrome (4410330144).

The spelling of 1210120023 in words is "one billion, two hundred ten million, one hundred twenty thousand, twenty-three".