120143402551 has 2 divisors, whose sum is σ = 120143402552. Its totient is φ = 120143402550.

The previous prime is 120143402497. The next prime is 120143402557. The reversal of 120143402551 is 155204341021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120143402551 - 2¹⁹ = 120142878263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120143402557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071701275 + 60071701276.

It is an arithmetic number, because the mean of its divisors is an integer number (60071701276).

Almost surely, 2^120143402551 is an apocalyptic number.

120143402551 is a deficient number, since it is larger than the sum of its proper divisors (1).

120143402551 is an equidigital number, since it uses as much as digits as its factorization.

120143402551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 120143402551 its reverse (155204341021), we get a palindrome (275347743572).

The spelling of 120143402551 in words is "one hundred twenty billion, one hundred forty-three million, four hundred two thousand, five hundred fifty-one".