131211101123 has 8 divisors (see below), whose sum is σ = 131804661120. Its totient is φ = 130617947520.

The previous prime is 131211101117. The next prime is 131211101137. The reversal of 131211101123 is 321101112131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131211101123 - 2⁶ = 131211101059 is a prime.

It is a super-2 number, since 2×131211101123² (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 (131211101183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555161 + ... + 755397.

It is an arithmetic number, because the mean of its divisors is an integer number (16475582640).

Almost surely, 2^131211101123 is an apocalyptic number.

131211101123 is a deficient number, since it is larger than the sum of its proper divisors (593559997).

131211101123 is a wasteful number, since it uses less digits than its factorization.

131211101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203197.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 131211101123 its reverse (321101112131), we get a palindrome (452312213254).

The spelling of 131211101123 in words is "one hundred thirty-one billion, two hundred eleven million, one hundred one thousand, one hundred twenty-three".