1010105551 has 12 divisors (see below), whose sum is σ = 1265407752. Its totient is φ = 799203888.

The previous prime is 1010105497. The next prime is 1010105557. The reversal of 1010105551 is 1555010101.

It is a happy number.

It is not a de Polignac number, because 1010105551 - 2⁷ = 1010105423 is a prime.

It is a super-2 number, since 2×1010105551² = 2040626448322027202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010105557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792225 + ... + 793498.

It is an arithmetic number, because the mean of its divisors is an integer number (105450646).

Almost surely, 2^1010105551 is an apocalyptic number.

1010105551 is a deficient number, since it is larger than the sum of its proper divisors (255302201).

1010105551 is a wasteful number, since it uses less digits than its factorization.

1010105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585750 (or 1585743 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 1010105551 is about 31782.1577461317. The cubic root of 1010105551 is about 1003.3572333709.

Adding to 1010105551 its reverse (1555010101), we get a palindrome (2565115652).

The spelling of 1010105551 in words is "one billion, ten million, one hundred five thousand, five hundred fifty-one".