10121111231 has 8 divisors (see below), whose sum is σ = 12618528384. Its totient is φ = 7886580120.

The previous prime is 10121111219. The next prime is 10121111237. The reversal of 10121111231 is 13211112101.

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 10121111231 - 2¹⁴ = 10121094847 is a prime.

It is a super-2 number, since 2×10121111231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121111237) 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, 65721425 + ... + 65721578.

It is an arithmetic number, because the mean of its divisors is an integer number (1577316048).

Almost surely, 2^10121111231 is an apocalyptic number.

10121111231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121111231 is a deficient number, since it is larger than the sum of its proper divisors (2497417153).

10121111231 is a wasteful number, since it uses less digits than its factorization.

10121111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131443021.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 10121111231 its reverse (13211112101), we get a palindrome (23332223332).

The spelling of 10121111231 in words is "ten billion, one hundred twenty-one million, one hundred eleven thousand, two hundred thirty-one".