20223033531 has 8 divisors (see below), whose sum is σ = 27018963264. Its totient is φ = 13454563080.

The previous prime is 20223033529. The next prime is 20223033533. The reversal of 20223033531 is 13533032202.

It is an interprime number because it is at equal distance from previous prime (20223033529) and next prime (20223033533).

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

It is not a de Polignac number, because 20223033531 - 2¹ = 20223033529 is a prime.

It is a super-2 number, since 2×20223033531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20223033533) 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, 6863101 + ... + 6866046.

It is an arithmetic number, because the mean of its divisors is an integer number (3377370408).

Almost surely, 2^20223033531 is an apocalyptic number.

20223033531 is a deficient number, since it is larger than the sum of its proper divisors (6795929733).

20223033531 is a wasteful number, since it uses less digits than its factorization.

20223033531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13729641.

The product of its (nonzero) digits is 3240, while the sum is 24.

Adding to 20223033531 its reverse (13533032202), we get a palindrome (33756065733).

The spelling of 20223033531 in words is "twenty billion, two hundred twenty-three million, thirty-three thousand, five hundred thirty-one".