212003131 has 2 divisors, whose sum is σ = 212003132. Its totient is φ = 212003130.

The previous prime is 212003111. The next prime is 212003153. The reversal of 212003131 is 131300212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212003131 - 2²¹ = 209905979 is a prime.

It is a super-2 number, since 2×212003131² = 89890655107606322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212003101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001565 + 106001566.

It is an arithmetic number, because the mean of its divisors is an integer number (106001566).

Almost surely, 2^212003131 is an apocalyptic number.

212003131 is a deficient number, since it is larger than the sum of its proper divisors (1).

212003131 is an equidigital number, since it uses as much as digits as its factorization.

212003131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 212003131 is about 14560.3272971455. The cubic root of 212003131 is about 596.2761311866.

Adding to 212003131 its reverse (131300212), we get a palindrome (343303343).

The spelling of 212003131 in words is "two hundred twelve million, three thousand, one hundred thirty-one".