213002031 has 16 divisors (see below), whose sum is σ = 312893568. Its totient is φ = 127812000.

The previous prime is 213002021. The next prime is 213002033. The reversal of 213002031 is 130200312.

It is a happy number.

It is not a de Polignac number, because 213002031 - 2⁷ = 213001903 is a prime.

It is a super-2 number, since 2×213002031² = 90739730420249922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213001998 and 213002016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213002033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28621 + ... + 35286.

It is an arithmetic number, because the mean of its divisors is an integer number (19555848).

Almost surely, 2^213002031 is an apocalyptic number.

213002031 is a deficient number, since it is larger than the sum of its proper divisors (99891537).

213002031 is a wasteful number, since it uses less digits than its factorization.

213002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64022.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 213002031 is about 14594.5891000740. The cubic root of 213002031 is about 597.2111601488.

Adding to 213002031 its reverse (130200312), we get a palindrome (343202343).

The spelling of 213002031 in words is "two hundred thirteen million, two thousand, thirty-one".