1211112012023 has 8 divisors (see below), whose sum is σ = 1269192963168. Its totient is φ = 1153483053184.

The previous prime is 1211112011999. The next prime is 1211112012031. The reversal of 1211112012023 is 3202102111121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211112012023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211112011992 and 1211112012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211112012043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112992590 + ... + 113003307.

It is an arithmetic number, because the mean of its divisors is an integer number (158649120396).

Almost surely, 2^{1211112012023} is an apocalyptic number.

1211112012023 is a deficient number, since it is larger than the sum of its proper divisors (58080951145).

1211112012023 is a wasteful number, since it uses less digits than its factorization.

1211112012023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225996153.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1211112012023 its reverse (3202102111121), we get a palindrome (4413214123144).

The spelling of 1211112012023 in words is "one trillion, two hundred eleven billion, one hundred twelve million, twelve thousand, twenty-three".