10121322121231 has 4 divisors (see below), whose sum is σ = 10225665648352. Its totient is φ = 10016978594112.

The previous prime is 10121322121199. The next prime is 10121322121249. The reversal of 10121322121231 is 13212122312101.

It is a happy number.

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 10121322121231 - 2⁵ = 10121322121199 is a prime.

It is a super-2 number, since 2×10121322121231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121322124231) 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, 52171763415 + ... + 52171763608.

It is an arithmetic number, because the mean of its divisors is an integer number (2556416412088).

Almost surely, 2^{10121322121231} is an apocalyptic number.

10121322121231 is a deficient number, since it is larger than the sum of its proper divisors (104343527121).

10121322121231 is an equidigital number, since it uses as much as digits as its factorization.

10121322121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104343527120.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 10121322121231 its reverse (13212122312101), we get a palindrome (23333444433332).

The spelling of 10121322121231 in words is "ten trillion, one hundred twenty-one billion, three hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-one".