1233578023469 has 4 divisors (see below), whose sum is σ = 1345721480160. Its totient is φ = 1121434566780.

The previous prime is 1233578023463. The next prime is 1233578023519. The reversal of 1233578023469 is 9643208753321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1233578023469 - 2⁸ = 1233578023213 is a prime.

It is a super-2 number, since 2×1233578023469² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1233578023469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233578023463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56071728329 + ... + 56071728350.

It is an arithmetic number, because the mean of its divisors is an integer number (336430370040).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1233578023469 = 2467156046938, but 3⋅1233578023469 = 3700734070407 is not.

Almost surely, 2^{1233578023469} is an apocalyptic number.

It is an amenable number.

1233578023469 is a deficient number, since it is larger than the sum of its proper divisors (112143456691).

1233578023469 is a wasteful number, since it uses less digits than its factorization.

1233578023469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112143456690.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 1233578023469 in words is "one trillion, two hundred thirty-three billion, five hundred seventy-eight million, twenty-three thousand, four hundred sixty-nine".