20276031641 has 2 divisors, whose sum is σ = 20276031642. Its totient is φ = 20276031640.

The previous prime is 20276031619. The next prime is 20276031749. The reversal of 20276031641 is 14613067202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13828584025 + 6447447616 = 117595^2 + 80296^2 .

It is a cyclic number.

It is not a de Polignac number, because 20276031641 - 2¹⁰ = 20276030617 is a prime.

It is a super-2 number, since 2×20276031641² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20276031598 and 20276031607.

It is not a weakly prime, because it can be changed into another prime (20276033641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10138015820 + 10138015821.

It is an arithmetic number, because the mean of its divisors is an integer number (10138015821).

Almost surely, 2^20276031641 is an apocalyptic number.

It is an amenable number.

20276031641 is a deficient number, since it is larger than the sum of its proper divisors (1).

20276031641 is an equidigital number, since it uses as much as digits as its factorization.

20276031641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 20276031641 its reverse (14613067202), we get a palindrome (34889098843).

The spelling of 20276031641 in words is "twenty billion, two hundred seventy-six million, thirty-one thousand, six hundred forty-one".