213480331 has 2 divisors, whose sum is σ = 213480332. Its totient is φ = 213480330.

The previous prime is 213480287. The next prime is 213480347. The reversal of 213480331 is 133084312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213480331 - 2²⁵ = 179925899 is a prime.

It is a super-2 number, since 2×213480331² = 91147703447739122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213480296 and 213480305.

It is not a weakly prime, because it can be changed into another prime (213480431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106740165 + 106740166.

It is an arithmetic number, because the mean of its divisors is an integer number (106740166).

Almost surely, 2^213480331 is an apocalyptic number.

213480331 is a deficient number, since it is larger than the sum of its proper divisors (1).

213480331 is an equidigital number, since it uses as much as digits as its factorization.

213480331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 213480331 is about 14610.9661213761. The cubic root of 213480331 is about 597.6578422062.

The spelling of 213480331 in words is "two hundred thirteen million, four hundred eighty thousand, three hundred thirty-one".