2001125010534 has 16 divisors (see below), whose sum is σ = 4310115407472. Its totient is φ = 615730772448.

The previous prime is 2001125010529. The next prime is 2001125010539. The reversal of 2001125010534 is 4350105211002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2001125010529) and next prime (2001125010539).

It is a super-3 number, since 3×2001125010534³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001125010539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12827724349 + ... + 12827724504.

It is an arithmetic number, because the mean of its divisors is an integer number (269382212967).

Almost surely, 2^{2001125010534} is an apocalyptic number.

2001125010534 is an abundant number, since it is smaller than the sum of its proper divisors (2308990396938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001125010534 is a wasteful number, since it uses less digits than its factorization.

2001125010534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25655448871.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 2001125010534 in words is "two trillion, one billion, one hundred twenty-five million, ten thousand, five hundred thirty-four".