20541031451 has 2 divisors, whose sum is σ = 20541031452. Its totient is φ = 20541031450.

The previous prime is 20541031417. The next prime is 20541031457. The reversal of 20541031451 is 15413014502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20541031451 - 2¹⁰ = 20541030427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20541031451.

It is not a weakly prime, because it can be changed into another prime (20541031457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270515725 + 10270515726.

It is an arithmetic number, because the mean of its divisors is an integer number (10270515726).

Almost surely, 2^20541031451 is an apocalyptic number.

20541031451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541031451 is an equidigital number, since it uses as much as digits as its factorization.

20541031451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20541031451 its reverse (15413014502), we get a palindrome (35954045953).

The spelling of 20541031451 in words is "twenty billion, five hundred forty-one million, thirty-one thousand, four hundred fifty-one".