20311413043 has 2 divisors, whose sum is σ = 20311413044. Its totient is φ = 20311413042.

The previous prime is 20311413029. The next prime is 20311413071. The reversal of 20311413043 is 34031411302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20311413043 - 2²⁹ = 19774542131 is a prime.

It is not a weakly prime, because it can be changed into another prime (20311413943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155706521 + 10155706522.

It is an arithmetic number, because the mean of its divisors is an integer number (10155706522).

Almost surely, 2^20311413043 is an apocalyptic number.

20311413043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311413043 is an equidigital number, since it uses as much as digits as its factorization.

20311413043 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 22.

Adding to 20311413043 its reverse (34031411302), we get a palindrome (54342824345).

The spelling of 20311413043 in words is "twenty billion, three hundred eleven million, four hundred thirteen thousand, forty-three".