20251132061 has 2 divisors, whose sum is σ = 20251132062. Its totient is φ = 20251132060.

The previous prime is 20251131947. The next prime is 20251132067. The reversal of 20251132061 is 16023115202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11524022500 + 8727109561 = 107350^2 + 93419^2 .

It is a cyclic number.

It is not a de Polignac number, because 20251132061 - 2¹⁸ = 20250869917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20251132067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125566030 + 10125566031.

It is an arithmetic number, because the mean of its divisors is an integer number (10125566031).

Almost surely, 2^20251132061 is an apocalyptic number.

It is an amenable number.

20251132061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251132061 is an equidigital number, since it uses as much as digits as its factorization.

20251132061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20251132061 its reverse (16023115202), we get a palindrome (36274247263).

The spelling of 20251132061 in words is "twenty billion, two hundred fifty-one million, one hundred thirty-two thousand, sixty-one".