1011021331002 has 128 divisors (see below), whose sum is σ = 2165159393280. Its totient is φ = 314047641600.

The previous prime is 1011021330959. The next prime is 1011021331031. The reversal of 1011021331002 is 2001331201101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 432243949 + ... + 432246287.

It is an arithmetic number, because the mean of its divisors is an integer number (16915307760).

Almost surely, 2^{1011021331002} is an apocalyptic number.

1011021331002 is an abundant number, since it is smaller than the sum of its proper divisors (1154138062278).

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

1011021331002 is a wasteful number, since it uses less digits than its factorization.

1011021331002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1011021331002 its reverse (2001331201101), we get a palindrome (3012352532103).

The spelling of 1011021331002 in words is "one trillion, eleven billion, twenty-one million, three hundred thirty-one thousand, two".