201311222023 has 8 divisors (see below), whose sum is σ = 202729230000. Its totient is φ = 199894106688.

The previous prime is 201311221957. The next prime is 201311222069. The reversal of 201311222023 is 320222113102.

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-201311222023 is a prime.

It is a super-2 number, since 2×201311222023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201311225023) 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, 232740 + ... + 675862.

It is an arithmetic number, because the mean of its divisors is an integer number (25341153750).

Almost surely, 2^201311222023 is an apocalyptic number.

201311222023 is a deficient number, since it is larger than the sum of its proper divisors (1418007977).

201311222023 is a wasteful number, since it uses less digits than its factorization.

201311222023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446321.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201311222023 its reverse (320222113102), we get a palindrome (521533335125).

The spelling of 201311222023 in words is "two hundred one billion, three hundred eleven million, two hundred twenty-two thousand, twenty-three".