12101133031 has 4 divisors (see below), whose sum is σ = 13031989432. Its totient is φ = 11170276632.

The previous prime is 12101133017. The next prime is 12101133047. The reversal of 12101133031 is 13033110121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13033110121 = 2939 ⋅4434539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101133031 is a prime.

It is a super-2 number, since 2×12101133031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101132996 and 12101133014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101136031) 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, 465428181 + ... + 465428206.

It is an arithmetic number, because the mean of its divisors is an integer number (3257997358).

Almost surely, 2^12101133031 is an apocalyptic number.

12101133031 is a deficient number, since it is larger than the sum of its proper divisors (930856401).

12101133031 is an equidigital number, since it uses as much as digits as its factorization.

12101133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930856400.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 12101133031 its reverse (13033110121), we get a palindrome (25134243152).

The spelling of 12101133031 in words is "twelve billion, one hundred one million, one hundred thirty-three thousand, thirty-one".