1023431421223 has 4 divisors (see below), whose sum is σ = 1023919003800. Its totient is φ = 1022943838648.

The previous prime is 1023431421211. The next prime is 1023431421277. The reversal of 1023431421223 is 3221241343201.

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

It is a cyclic number.

It is not a de Polignac number, because 1023431421223 - 2¹³ = 1023431413031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023431421191 and 1023431421200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023431421283) 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 3 ways as a sum of consecutive naturals, for example, 243788140 + ... + 243792337.

It is an arithmetic number, because the mean of its divisors is an integer number (255979750950).

Almost surely, 2^{1023431421223} is an apocalyptic number.

1023431421223 is a deficient number, since it is larger than the sum of its proper divisors (487582577).

1023431421223 is an equidigital number, since it uses as much as digits as its factorization.

1023431421223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487582576.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1023431421223 its reverse (3221241343201), we get a palindrome (4244672764424).

The spelling of 1023431421223 in words is "one trillion, twenty-three billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred twenty-three".