1023202321111 has 4 divisors (see below), whose sum is σ = 1058485159800. Its totient is φ = 987919482424.

The previous prime is 1023202321081. The next prime is 1023202321121. The reversal of 1023202321111 is 1111232023201.

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 1023202321111 - 2⁷ = 1023202320983 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 (1023202321121) 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, 17641419301 + ... + 17641419358.

It is an arithmetic number, because the mean of its divisors is an integer number (264621289950).

Almost surely, 2^{1023202321111} is an apocalyptic number.

1023202321111 is a deficient number, since it is larger than the sum of its proper divisors (35282838689).

1023202321111 is an equidigital number, since it uses as much as digits as its factorization.

1023202321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35282838688.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1023202321111 its reverse (1111232023201), we get a palindrome (2134434344312).

The spelling of 1023202321111 in words is "one trillion, twenty-three billion, two hundred two million, three hundred twenty-one thousand, one hundred eleven".