1011965323 has 4 divisors (see below), whose sum is σ = 1018411120. Its totient is φ = 1005519528.

The previous prime is 1011965309. The next prime is 1011965329. The reversal of 1011965323 is 3235691101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3235691101 = 12269 ⋅263729.

It is a cyclic number.

It is not a de Polignac number, because 1011965323 - 2¹⁷ = 1011834251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011965329) 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, 3222663 + ... + 3222976.

It is an arithmetic number, because the mean of its divisors is an integer number (254602780).

Almost surely, 2^1011965323 is an apocalyptic number.

1011965323 is a deficient number, since it is larger than the sum of its proper divisors (6445797).

1011965323 is an equidigital number, since it uses as much as digits as its factorization.

1011965323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445796.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1011965323 is about 31811.4024054269. The cubic root of 1011965323 is about 1003.9726382468.

The spelling of 1011965323 in words is "one billion, eleven million, nine hundred sixty-five thousand, three hundred twenty-three".