31323311111101 has 32 divisors (see below), whose sum is σ = 34042479482880. Its totient is φ = 28745196849600.

The previous prime is 31323311111087. The next prime is 31323311111107. The reversal of 31323311111101 is 10111111332313.

It is a cyclic number.

It is not a de Polignac number, because 31323311111101 - 2¹⁵ = 31323311078333 is a prime.

It is a super-2 number, since 2×31323311111101² (a number of 28 digits) 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 (31323311111107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18059766 + ... + 19718056.

It is an arithmetic number, because the mean of its divisors is an integer number (1063827483840).

Almost surely, 2^{31323311111101} is an apocalyptic number.

It is an amenable number.

31323311111101 is a deficient number, since it is larger than the sum of its proper divisors (2719168371779).

31323311111101 is a wasteful number, since it uses less digits than its factorization.

31323311111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658697.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 31323311111101 its reverse (10111111332313), we get a palindrome (41434422443414).

The spelling of 31323311111101 in words is "thirty-one trillion, three hundred twenty-three billion, three hundred eleven million, one hundred eleven thousand, one hundred one".