2031420555 has 24 divisors (see below), whose sum is σ = 3544772400. Its totient is φ = 1076149440.

The previous prime is 2031420553. The next prime is 2031420557. The reversal of 2031420555 is 5550241302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2031420553) and next prime (2031420557).

It is not a de Polignac number, because 2031420555 - 2¹ = 2031420553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031420553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144781 + ... + 158190.

It is an arithmetic number, because the mean of its divisors is an integer number (147698850).

Almost surely, 2^2031420555 is an apocalyptic number.

2031420555 is a deficient number, since it is larger than the sum of its proper divisors (1513351845).

2031420555 is a wasteful number, since it uses less digits than its factorization.

2031420555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303131 (or 303128 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2031420555 is about 45071.2830414223. The cubic root of 2031420555 is about 1266.4846998144.

Adding to 2031420555 its reverse (5550241302), we get a palindrome (7581661857).

The spelling of 2031420555 in words is "two billion, thirty-one million, four hundred twenty thousand, five hundred fifty-five".