220203010031 has 4 divisors (see below), whose sum is σ = 220335904272. Its totient is φ = 220070115792.

The previous prime is 220203009991. The next prime is 220203010151. The reversal of 220203010031 is 130010302022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130010302022 = 2 ⋅65005151011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220203010031 is a prime.

It is a super-2 number, since 2×220203010031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220203009988 and 220203010015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220203010331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66444635 + ... + 66447948.

It is an arithmetic number, because the mean of its divisors is an integer number (55083976068).

Almost surely, 2^220203010031 is an apocalyptic number.

220203010031 is a deficient number, since it is larger than the sum of its proper divisors (132894241).

220203010031 is a wasteful number, since it uses less digits than its factorization.

220203010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132894240.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 220203010031 its reverse (130010302022), we get a palindrome (350213312053).

The spelling of 220203010031 in words is "two hundred twenty billion, two hundred three million, ten thousand, thirty-one".