1211013340031 has 6 divisors (see below), whose sum is σ = 1331113836696. Its totient is φ = 1100921218100.

The previous prime is 1211013340001. The next prime is 1211013340067. The reversal of 1211013340031 is 1300433101121.

It is not a de Polignac number, because 1211013340031 - 2¹⁴ = 1211013323647 is a prime.

It is a super-2 number, since 2×1211013340031² (a number of 25 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 = 1211013339985 and 1211013340012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211013340001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5004187235 + ... + 5004187476.

It is an arithmetic number, because the mean of its divisors is an integer number (221852306116).

Almost surely, 2^{1211013340031} is an apocalyptic number.

1211013340031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1211013340031 is a deficient number, since it is larger than the sum of its proper divisors (120100496665).

1211013340031 is a wasteful number, since it uses less digits than its factorization.

1211013340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008374733 (or 10008374722 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1211013340031 its reverse (1300433101121), we get a palindrome (2511446441152).

The spelling of 1211013340031 in words is "one trillion, two hundred eleven billion, thirteen million, three hundred forty thousand, thirty-one".