102011323331 has 4 divisors (see below), whose sum is σ = 105528955200. Its totient is φ = 98493691464.

The previous prime is 102011323327. The next prime is 102011323339. The reversal of 102011323331 is 133323110201.

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 102011323331 - 2² = 102011323327 is a prime.

It is a super-2 number, since 2×102011323331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011323339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758815891 + ... + 1758815948.

It is an arithmetic number, because the mean of its divisors is an integer number (26382238800).

Almost surely, 2^102011323331 is an apocalyptic number.

102011323331 is a deficient number, since it is larger than the sum of its proper divisors (3517631869).

102011323331 is an equidigital number, since it uses as much as digits as its factorization.

102011323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517631868.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 102011323331 its reverse (133323110201), we get a palindrome (235334433532).

The spelling of 102011323331 in words is "one hundred two billion, eleven million, three hundred twenty-three thousand, three hundred thirty-one".