331980263 has 4 divisors (see below), whose sum is σ = 333665640. Its totient is φ = 330294888.

The previous prime is 331980251. The next prime is 331980277. The reversal of 331980263 is 362089133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362089133 = 7 ⋅51727019.

It is a cyclic number.

It is not a de Polignac number, because 331980263 - 2⁴ = 331980247 is a prime.

It is a super-2 number, since 2×331980263² = 220421790043098338, 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 (331980203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842393 + ... + 842786.

It is an arithmetic number, because the mean of its divisors is an integer number (83416410).

Almost surely, 2^331980263 is an apocalyptic number.

331980263 is a deficient number, since it is larger than the sum of its proper divisors (1685377).

331980263 is a wasteful number, since it uses less digits than its factorization.

331980263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685376.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 331980263 is about 18220.3255459391. The cubic root of 331980263 is about 692.4218355042.

The spelling of 331980263 in words is "three hundred thirty-one million, nine hundred eighty thousand, two hundred sixty-three".