213276031 has 2 divisors, whose sum is σ = 213276032. Its totient is φ = 213276030.

The previous prime is 213276017. The next prime is 213276047. The reversal of 213276031 is 130672312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213276031 - 2⁷ = 213275903 is a prime.

It is a super-2 number, since 2×213276031² = 90973330798225922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213275987 and 213276005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213276071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106638015 + 106638016.

It is an arithmetic number, because the mean of its divisors is an integer number (106638016).

Almost surely, 2^213276031 is an apocalyptic number.

213276031 is a deficient number, since it is larger than the sum of its proper divisors (1).

213276031 is an equidigital number, since it uses as much as digits as its factorization.

213276031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 213276031 is about 14603.9731237770. The cubic root of 213276031 is about 597.4671291359.

The spelling of 213276031 in words is "two hundred thirteen million, two hundred seventy-six thousand, thirty-one".