1023211311331 has 4 divisors (see below), whose sum is σ = 1116230521464. Its totient is φ = 930192101200.

The previous prime is 1023211311319. The next prime is 1023211311361. The reversal of 1023211311331 is 1331131123201.

1023211311331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1023211311331 - 2³⁵ = 988851572963 is a prime.

It is a super-2 number, since 2×1023211311331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023211311361) 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, 46509605050 + ... + 46509605071.

It is an arithmetic number, because the mean of its divisors is an integer number (279057630366).

Almost surely, 2^{1023211311331} is an apocalyptic number.

1023211311331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1023211311331 is a deficient number, since it is larger than the sum of its proper divisors (93019210133).

1023211311331 is an equidigital number, since it uses as much as digits as its factorization.

1023211311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93019210132.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1023211311331 its reverse (1331131123201), we get a palindrome (2354342434532).

The spelling of 1023211311331 in words is "one trillion, twenty-three billion, two hundred eleven million, three hundred eleven thousand, three hundred thirty-one".