3213412981 has 24 divisors (see below), whose sum is σ = 3617732160. Its totient is φ = 2843842176.

The previous prime is 3213412967. The next prime is 3213412991. The reversal of 3213412981 is 1892143123.

It is a happy number.

It is not a de Polignac number, because 3213412981 - 2¹¹ = 3213410933 is a prime.

It is a super-2 number, since 2×3213412981² = 20652045972918612722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213412991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 851160 + ... + 854926.

It is an arithmetic number, because the mean of its divisors is an integer number (150738840).

Almost surely, 2^3213412981 is an apocalyptic number.

It is an amenable number.

3213412981 is a deficient number, since it is larger than the sum of its proper divisors (404319179).

3213412981 is a wasteful number, since it uses less digits than its factorization.

3213412981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961 (or 3942 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 3213412981 is about 56686.9736447449. The cubic root of 3213412981 is about 1475.6686396440.

The spelling of 3213412981 in words is "three billion, two hundred thirteen million, four hundred twelve thousand, nine hundred eighty-one".