1213101030023 has 16 divisors (see below), whose sum is σ = 1315043373600. Its totient is φ = 1115188760448.

The previous prime is 1213101030007. The next prime is 1213101030067. The reversal of 1213101030023 is 3200301013121.

It is not a de Polignac number, because 1213101030023 - 2⁴ = 1213101030007 is a prime.

It is a super-2 number, since 2×1213101030023² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213101029983 and 1213101030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213101030073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902861 + ... + 1800377.

It is an arithmetic number, because the mean of its divisors is an integer number (82190210850).

Almost surely, 2^{1213101030023} is an apocalyptic number.

1213101030023 is a deficient number, since it is larger than the sum of its proper divisors (101942343577).

1213101030023 is an frugal number, since it uses more digits than its factorization.

1213101030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897663 (or 897577 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1213101030023 its reverse (3200301013121), we get a palindrome (4413402043144).

The spelling of 1213101030023 in words is "one trillion, two hundred thirteen billion, one hundred one million, thirty thousand, twenty-three".