1220231023 has 8 divisors (see below), whose sum is σ = 1335707856. Its totient is φ = 1105512000.

The previous prime is 1220231017. The next prime is 1220231027. The reversal of 1220231023 is 3201320221.

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 1220231023 - 2¹³ = 1220222831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220230988 and 1220231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220231027) 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, 186078 + ... + 192523.

It is an arithmetic number, because the mean of its divisors is an integer number (166963482).

Almost surely, 2^1220231023 is an apocalyptic number.

1220231023 is a deficient number, since it is larger than the sum of its proper divisors (115476833).

1220231023 is a wasteful number, since it uses less digits than its factorization.

1220231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378905.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220231023 is about 34931.8053212255. The cubic root of 1220231023 is about 1068.5971725980.

Adding to 1220231023 its reverse (3201320221), we get a palindrome (4421551244).

The spelling of 1220231023 in words is "one billion, two hundred twenty million, two hundred thirty-one thousand, twenty-three".