1020001124 has 12 divisors (see below), whose sum is σ = 1786929900. Its totient is φ = 509449728.

The previous prime is 1020001063. The next prime is 1020001133. The reversal of 1020001124 is 4211000201.

It can be written as a sum of positive squares in 2 ways, for example, as 69388900 + 950612224 = 8330^2 + 30832^2 .

It is a super-2 number, since 2×1020001124² = 2080804585922526752, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 133529 + ... + 140960.

It is an arithmetic number, because the mean of its divisors is an integer number (148910825).

Almost surely, 2^1020001124 is an apocalyptic number.

It is an amenable number.

1020001124 is a deficient number, since it is larger than the sum of its proper divisors (766928776).

1020001124 is a wasteful number, since it uses less digits than its factorization.

1020001124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275422 (or 275420 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020001124 is about 31937.4564422404. The cubic root of 1020001124 is about 1006.6230793129.

Adding to 1020001124 its reverse (4211000201), we get a palindrome (5231001325).

The spelling of 1020001124 in words is "one billion, twenty million, one thousand, one hundred twenty-four".