10121311211131 has 4 divisors (see below), whose sum is σ = 10129151112664. Its totient is φ = 10113471309600.

The previous prime is 10121311211041. The next prime is 10121311211171. The reversal of 10121311211131 is 13111211312101.

10121311211131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10121311211131 - 2¹¹ = 10121311209083 is a prime.

It is a super-2 number, since 2×10121311211131² (a number of 27 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 = 10121311211099 and 10121311211108.

It is not an unprimeable number, because it can be changed into a prime (10121311211171) 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, 3919948830 + ... + 3919951411.

It is an arithmetic number, because the mean of its divisors is an integer number (2532287778166).

Almost surely, 2^{10121311211131} is an apocalyptic number.

10121311211131 is a deficient number, since it is larger than the sum of its proper divisors (7839901533).

10121311211131 is an equidigital number, since it uses as much as digits as its factorization.

10121311211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7839901532.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 10121311211131 its reverse (13111211312101), we get a palindrome (23232522523232).

The spelling of 10121311211131 in words is "ten trillion, one hundred twenty-one billion, three hundred eleven million, two hundred eleven thousand, one hundred thirty-one".