20223001031 has 4 divisors (see below), whose sum is σ = 20223511464. Its totient is φ = 20222490600.

The previous prime is 20223000983. The next prime is 20223001037. The reversal of 20223001031 is 13010032202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223001031 is a prime.

It is a super-2 number, since 2×20223001031² (a number of 21 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 = 20223000997 and 20223001015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223001037) 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, 190280 + ... + 276861.

It is an arithmetic number, because the mean of its divisors is an integer number (5055877866).

Almost surely, 2^20223001031 is an apocalyptic number.

20223001031 is a deficient number, since it is larger than the sum of its proper divisors (510433).

20223001031 is an equidigital number, since it uses as much as digits as its factorization.

20223001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510432.

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

Adding to 20223001031 its reverse (13010032202), we get a palindrome (33233033233).

The spelling of 20223001031 in words is "twenty billion, two hundred twenty-three million, one thousand, thirty-one".