131101323111 has 24 divisors (see below), whose sum is σ = 212167257744. Its totient is φ = 77307903360.

The previous prime is 131101323083. The next prime is 131101323137. The reversal of 131101323111 is 111323101131.

131101323111 is a `hidden beast` number, since 131 + 101 + 323 + 111 = 666.

It is not a de Polignac number, because 131101323111 - 2¹⁰ = 131101322087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131101323161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17891686 + ... + 17899011.

It is an arithmetic number, because the mean of its divisors is an integer number (8840302406).

Almost surely, 2^131101323111 is an apocalyptic number.

131101323111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131101323111 is a deficient number, since it is larger than the sum of its proper divisors (81065934633).

131101323111 is a wasteful number, since it uses less digits than its factorization.

131101323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35790751 (or 35790748 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 131101323111 its reverse (111323101131), we get a palindrome (242424424242).

The spelling of 131101323111 in words is "one hundred thirty-one billion, one hundred one million, three hundred twenty-three thousand, one hundred eleven".