1210121313023 has 6 divisors (see below), whose sum is σ = 1407692139696. Its totient is φ = 1037246839692.

The previous prime is 1210121313017. The next prime is 1210121313041. The reversal of 1210121313023 is 3203131210121.

It is a happy number.

It is not a de Polignac number, because 1210121313023 - 2¹⁴ = 1210121296639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210121312986 and 1210121313004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210121313223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12348176615 + ... + 12348176712.

It is an arithmetic number, because the mean of its divisors is an integer number (234615356616).

Almost surely, 2^{1210121313023} is an apocalyptic number.

1210121313023 is a deficient number, since it is larger than the sum of its proper divisors (197570826673).

1210121313023 is an equidigital number, since it uses as much as digits as its factorization.

1210121313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24696353341 (or 24696353334 counting only the distinct ones).

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

Adding to 1210121313023 its reverse (3203131210121), we get a palindrome (4413252523144).

The spelling of 1210121313023 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, three hundred thirteen thousand, twenty-three".