1002011055 has 16 divisors (see below), whose sum is σ = 1603615200. Its totient is φ = 534273408.

The previous prime is 1002011027. The next prime is 1002011083. The reversal of 1002011055 is 5501102001.

It is an interprime number because it is at equal distance from previous prime (1002011027) and next prime (1002011083).

It is not a de Polignac number, because 1002011055 - 2⁷ = 1002010927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99429 + ... + 109041.

It is an arithmetic number, because the mean of its divisors is an integer number (100225950).

Almost surely, 2^1002011055 is an apocalyptic number.

1002011055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1002011055 is a deficient number, since it is larger than the sum of its proper divisors (601604145).

1002011055 is an equidigital number, since it uses as much as digits as its factorization.

1002011055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1002011055 is about 31654.5582025717. The cubic root of 1002011055 is about 1000.6699027967.

Adding to 1002011055 its reverse (5501102001), we get a palindrome (6503113056).

The spelling of 1002011055 in words is "one billion, two million, eleven thousand, fifty-five".