1211123022331 has 8 divisors (see below), whose sum is σ = 1254038526720. Its totient is φ = 1168284360768.

The previous prime is 1211123022323. The next prime is 1211123022337. The reversal of 1211123022331 is 1332203211121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211123022331 - 2³ = 1211123022323 is a prime.

It is a super-2 number, since 2×1211123022331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211123022337) 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, 19178626 + ... + 19241671.

It is an arithmetic number, because the mean of its divisors is an integer number (156754815840).

Almost surely, 2^{1211123022331} is an apocalyptic number.

1211123022331 is a deficient number, since it is larger than the sum of its proper divisors (42915504389).

1211123022331 is a wasteful number, since it uses less digits than its factorization.

1211123022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38421413.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1211123022331 its reverse (1332203211121), we get a palindrome (2543326233452).

The spelling of 1211123022331 in words is "one trillion, two hundred eleven billion, one hundred twenty-three million, twenty-two thousand, three hundred thirty-one".