20400012151 has 2 divisors, whose sum is σ = 20400012152. Its totient is φ = 20400012150.

The previous prime is 20400012119. The next prime is 20400012163. The reversal of 20400012151 is 15121000402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20400012151 - 2⁵ = 20400012119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20400012251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10200006075 + 10200006076.

It is an arithmetic number, because the mean of its divisors is an integer number (10200006076).

Almost surely, 2^20400012151 is an apocalyptic number.

20400012151 is a deficient number, since it is larger than the sum of its proper divisors (1).

20400012151 is an equidigital number, since it uses as much as digits as its factorization.

20400012151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 20400012151 its reverse (15121000402), we get a palindrome (35521012553).

The spelling of 20400012151 in words is "twenty billion, four hundred million, twelve thousand, one hundred fifty-one".