121132310223 has 16 divisors (see below), whose sum is σ = 162516754400. Its totient is φ = 80252000640.

The previous prime is 121132310213. The next prime is 121132310237. The reversal of 121132310223 is 322013231121.

It is not a de Polignac number, because 121132310223 - 2¹⁴ = 121132293839 is a prime.

It is a super-2 number, since 2×121132310223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121132310223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132310213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697893 + ... + 854001.

It is an arithmetic number, because the mean of its divisors is an integer number (10157297150).

Almost surely, 2^121132310223 is an apocalyptic number.

121132310223 is a deficient number, since it is larger than the sum of its proper divisors (41384444177).

121132310223 is a wasteful number, since it uses less digits than its factorization.

121132310223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157722.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121132310223 its reverse (322013231121), we get a palindrome (443145541344).

The spelling of 121132310223 in words is "one hundred twenty-one billion, one hundred thirty-two million, three hundred ten thousand, two hundred twenty-three".