1220203023 has 8 divisors (see below), whose sum is σ = 1752086448. Its totient is φ = 750894144.

The previous prime is 1220202979. The next prime is 1220203027. The reversal of 1220203023 is 3203020221.

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

It is not a de Polignac number, because 1220203023 - 2¹² = 1220198927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220202993 and 1220203011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220203027) 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, 15643590 + ... + 15643667.

It is an arithmetic number, because the mean of its divisors is an integer number (219010806).

Almost surely, 2^1220203023 is an apocalyptic number.

1220203023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220203023 is a deficient number, since it is larger than the sum of its proper divisors (531883425).

1220203023 is a wasteful number, since it uses less digits than its factorization.

1220203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31287273.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1220203023 is about 34931.4045380371. The cubic root of 1220203023 is about 1068.5889990229.

Adding to 1220203023 its reverse (3203020221), we get a palindrome (4423223244).

The spelling of 1220203023 in words is "one billion, two hundred twenty million, two hundred three thousand, twenty-three".