961003331 has 4 divisors (see below), whose sum is σ = 986976432. Its totient is φ = 935030232.

The previous prime is 961003291. The next prime is 961003343. The reversal of 961003331 is 133300169.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 961003331 - 2²² = 956809027 is a prime.

It is a super-2 number, since 2×961003331² = 1847054804386191122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 961003331.

It is not an unprimeable number, because it can be changed into a prime (961003361) 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, 12986495 + ... + 12986568.

It is an arithmetic number, because the mean of its divisors is an integer number (246744108).

Almost surely, 2^961003331 is an apocalyptic number.

961003331 is a deficient number, since it is larger than the sum of its proper divisors (25973101).

961003331 is a wasteful number, since it uses less digits than its factorization.

961003331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25973100.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 961003331 is about 31000.0537257599. The cubic root of 961003331 is about 986.8283804945.

The spelling of 961003331 in words is "nine hundred sixty-one million, three thousand, three hundred thirty-one".