20122132361 has 2 divisors, whose sum is σ = 20122132362. Its totient is φ = 20122132360.

The previous prime is 20122132321. The next prime is 20122132379. The reversal of 20122132361 is 16323122102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19875642361 + 246490000 = 140981^2 + 15700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122132361 is a prime.

It is a super-3 number, since 3×20122132361³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20122132301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061066180 + 10061066181.

It is an arithmetic number, because the mean of its divisors is an integer number (10061066181).

Almost surely, 2^20122132361 is an apocalyptic number.

It is an amenable number.

20122132361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122132361 is an equidigital number, since it uses as much as digits as its factorization.

20122132361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20122132361 its reverse (16323122102), we get a palindrome (36445254463).

The spelling of 20122132361 in words is "twenty billion, one hundred twenty-two million, one hundred thirty-two thousand, three hundred sixty-one".