2001321054 has 32 divisors (see below), whose sum is σ = 4454208000. Its totient is φ = 666082872.

The previous prime is 2001321043. The next prime is 2001321089. The reversal of 2001321054 is 4501231002.

It is a super-2 number, since 2×2001321054² = 8010571922367341832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 7467 + ... + 63705.

It is an arithmetic number, because the mean of its divisors is an integer number (139194000).

Almost surely, 2^2001321054 is an apocalyptic number.

2001321054 is an abundant number, since it is smaller than the sum of its proper divisors (2452886946).

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

2001321054 is a wasteful number, since it uses less digits than its factorization.

2001321054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56909 (or 56903 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2001321054 is about 44736.1269445624. The cubic root of 2001321054 is about 1260.1983927968.

Adding to 2001321054 its reverse (4501231002), we get a palindrome (6502552056).

The spelling of 2001321054 in words is "two billion, one million, three hundred twenty-one thousand, fifty-four".