1331220220023 has 8 divisors (see below), whose sum is σ = 1852132480128. Its totient is φ = 848894053304.

The previous prime is 1331220220009. The next prime is 1331220220061. The reversal of 1331220220023 is 3200220221331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331220220023 - 2⁴ = 1331220220007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331220220063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9646523265 + ... + 9646523402.

It is an arithmetic number, because the mean of its divisors is an integer number (231516560016).

Almost surely, 2^{1331220220023} is an apocalyptic number.

1331220220023 is a deficient number, since it is larger than the sum of its proper divisors (520912260105).

1331220220023 is a wasteful number, since it uses less digits than its factorization.

1331220220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19293046693.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1331220220023 its reverse (3200220221331), we get a palindrome (4531440441354).

The spelling of 1331220220023 in words is "one trillion, three hundred thirty-one billion, two hundred twenty million, two hundred twenty thousand, twenty-three".