1323676521 has 12 divisors (see below), whose sum is σ = 1936180480. Its totient is φ = 871280280.

The previous prime is 1323676511. The next prime is 1323676547. The reversal of 1323676521 is 1256763231.

1323676521 is a `hidden beast` number, since 1 + 32 + 36 + 76 + 521 = 666.

It is not a de Polignac number, because 1323676521 - 2¹⁵ = 1323643753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323676511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930145 + ... + 931566.

Almost surely, 2^1323676521 is an apocalyptic number.

It is an amenable number.

1323676521 is a deficient number, since it is larger than the sum of its proper divisors (612503959).

1323676521 is a wasteful number, since it uses less digits than its factorization.

1323676521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861796 (or 1861793 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 1323676521 is about 36382.3655223241. The cubic root of 1323676521 is about 1097.9788010877.

The spelling of 1323676521 in words is "one billion, three hundred twenty-three million, six hundred seventy-six thousand, five hundred twenty-one".