223121023429 has 2 divisors, whose sum is σ = 223121023430. Its totient is φ = 223121023428.

The previous prime is 223121023409. The next prime is 223121023451. The reversal of 223121023429 is 924320121322.

223121023429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127842002500 + 95279020929 = 357550^2 + 308673^2 .

It is a cyclic number.

It is not a de Polignac number, because 223121023429 - 2¹⁵ = 223120990661 is a prime.

It is a super-3 number, since 3×223121023429³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223121023429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223121023409) 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 as a sum of consecutive naturals, namely, 111560511714 + 111560511715.

It is an arithmetic number, because the mean of its divisors is an integer number (111560511715).

Almost surely, 2^223121023429 is an apocalyptic number.

It is an amenable number.

223121023429 is a deficient number, since it is larger than the sum of its proper divisors (1).

223121023429 is an equidigital number, since it uses as much as digits as its factorization.

223121023429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 223121023429 in words is "two hundred twenty-three billion, one hundred twenty-one million, twenty-three thousand, four hundred twenty-nine".