20011233097 has 2 divisors, whose sum is σ = 20011233098. Its totient is φ = 20011233096.

The previous prime is 20011233091. The next prime is 20011233131. The reversal of 20011233097 is 79033211002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19216613376 + 794619721 = 138624^2 + 28189^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011233097 - 2²⁷ = 19877015369 is a prime.

It is a super-2 number, since 2×20011233097² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20011233091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005616548 + 10005616549.

It is an arithmetic number, because the mean of its divisors is an integer number (10005616549).

Almost surely, 2^20011233097 is an apocalyptic number.

It is an amenable number.

20011233097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011233097 is an equidigital number, since it uses as much as digits as its factorization.

20011233097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

Adding to 20011233097 its reverse (79033211002), we get a palindrome (99044444099).

The spelling of 20011233097 in words is "twenty billion, eleven million, two hundred thirty-three thousand, ninety-seven".