9001011001002 has 64 divisors (see below), whose sum is σ = 18350237473920. Its totient is φ = 2942866080000.

The previous prime is 9001011000931. The next prime is 9001011001051. The reversal of 9001011001002 is 2001001101009.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 653993773 + ... + 654007535.

It is an arithmetic number, because the mean of its divisors is an integer number (286722460530).

Almost surely, 2^{9001011001002} is an apocalyptic number.

9001011001002 is an abundant number, since it is smaller than the sum of its proper divisors (9349226472918).

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

9001011001002 is a wasteful number, since it uses less digits than its factorization.

9001011001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23879.

The product of its (nonzero) digits is 18, while the sum is 15.

The spelling of 9001011001002 in words is "nine trillion, one billion, eleven million, one thousand, two".