1011121230223 has 16 divisors (see below), whose sum is σ = 1091741938560. Its totient is φ = 930907305216.

The previous prime is 1011121230209. The next prime is 1011121230239. The reversal of 1011121230223 is 3220321211101.

It is a cyclic number.

It is not a de Polignac number, because 1011121230223 - 2²⁵ = 1011087675791 is a prime.

It is a super-2 number, since 2×1011121230223² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1011121230223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011121230263) 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, 43784586 + ... + 43807672.

It is an arithmetic number, because the mean of its divisors is an integer number (68233871160).

Almost surely, 2^{1011121230223} is an apocalyptic number.

1011121230223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011121230223 is a deficient number, since it is larger than the sum of its proper divisors (80620708337).

1011121230223 is a wasteful number, since it uses less digits than its factorization.

1011121230223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31746.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1011121230223 its reverse (3220321211101), we get a palindrome (4231442441324).

The spelling of 1011121230223 in words is "one trillion, eleven billion, one hundred twenty-one million, two hundred thirty thousand, two hundred twenty-three".