1001032002 has 24 divisors (see below), whose sum is σ = 2219343984. Its totient is φ = 325917144.

The previous prime is 1001031979. The next prime is 1001032007. The reversal of 1001032002 is 2002301001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1001032007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 645888 + ... + 647435.

It is an arithmetic number, because the mean of its divisors is an integer number (92472666).

Almost surely, 2^1001032002 is an apocalyptic number.

1001032002 is an abundant number, since it is smaller than the sum of its proper divisors (1218311982).

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

1001032002 is a wasteful number, since it uses less digits than its factorization.

1001032002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293374 (or 1293371 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1001032002 is about 31639.0897783106. The cubic root of 1001032002 is about 1000.3438823980.

Adding to 1001032002 its reverse (2002301001), we get a palindrome (3003333003).

The spelling of 1001032002 in words is "one billion, one million, thirty-two thousand, two".