2031002021 has 8 divisors (see below), whose sum is σ = 2064719904. Its totient is φ = 1997384400.

The previous prime is 2031002011. The next prime is 2031002027. The reversal of 2031002021 is 1202001302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031001993 and 2031002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031002027) 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, 16346 + ... + 65796.

It is an arithmetic number, because the mean of its divisors is an integer number (258089988).

Almost surely, 2^2031002021 is an apocalyptic number.

It is an amenable number.

2031002021 is a deficient number, since it is larger than the sum of its proper divisors (33717883).

2031002021 is an equidigital number, since it uses as much as digits as its factorization.

2031002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50131.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2031002021 is about 45066.6397793312. The cubic root of 2031002021 is about 1266.3977158049.

Adding to 2031002021 its reverse (1202001302), we get a palindrome (3233003323).

The spelling of 2031002021 in words is "two billion, thirty-one million, two thousand, twenty-one".