20223285097 has 4 divisors (see below), whose sum is σ = 20223575380. Its totient is φ = 20222994816.

The previous prime is 20223285079. The next prime is 20223285127. The reversal of 20223285097 is 79058232202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14553044496 + 5670240601 = 120636^2 + 75301^2 .

It is a 3-Lehmer number, since φ(20223285097) divides (20223285097-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223285097 is a prime.

It is a super-2 number, since 2×20223285097² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20223285007) 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, 29029 + ... + 203197.

It is an arithmetic number, because the mean of its divisors is an integer number (5055893845).

It is a Poulet number, since it divides 2^20223285096-1.

Almost surely, 2^20223285097 is an apocalyptic number.

20223285097 is the 116113-rd pentagonal number.

It is an amenable number.

20223285097 is a deficient number, since it is larger than the sum of its proper divisors (290283).

20223285097 is a wasteful number, since it uses less digits than its factorization.

20223285097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290282.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20223285097 in words is "twenty billion, two hundred twenty-three million, two hundred eighty-five thousand, ninety-seven".