20154882043 has 2 divisors, whose sum is σ = 20154882044. Its totient is φ = 20154882042.

The previous prime is 20154881969. The next prime is 20154882047. The reversal of 20154882043 is 34028845102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20154882043 - 2¹⁷ = 20154750971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20154881993 and 20154882011.

It is not a weakly prime, because it can be changed into another prime (20154882047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077441021 + 10077441022.

It is an arithmetic number, because the mean of its divisors is an integer number (10077441022).

Almost surely, 2^20154882043 is an apocalyptic number.

20154882043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20154882043 is an equidigital number, since it uses as much as digits as its factorization.

20154882043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61440, while the sum is 37.

The spelling of 20154882043 in words is "twenty billion, one hundred fifty-four million, eight hundred eighty-two thousand, forty-three".