1223402433397 has 4 divisors (see below), whose sum is σ = 1223408850316. Its totient is φ = 1223396016480.

The previous prime is 1223402433389. The next prime is 1223402433413. The reversal of 1223402433397 is 7933342043221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 247082561476 + 976319871921 = 497074^2 + 988089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223402433397 - 2³ = 1223402433389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223402433367) 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, 2913438 + ... + 3306799.

It is an arithmetic number, because the mean of its divisors is an integer number (305852212579).

Almost surely, 2^{1223402433397} is an apocalyptic number.

It is an amenable number.

1223402433397 is a deficient number, since it is larger than the sum of its proper divisors (6416919).

1223402433397 is an equidigital number, since it uses as much as digits as its factorization.

1223402433397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416918.

The product of its (nonzero) digits is 653184, while the sum is 43.

The spelling of 1223402433397 in words is "one trillion, two hundred twenty-three billion, four hundred two million, four hundred thirty-three thousand, three hundred ninety-seven".