121442341131 has 24 divisors (see below), whose sum is σ = 179172448416. Its totient is φ = 79235769600.

The previous prime is 121442341129. The next prime is 121442341133. The reversal of 121442341131 is 131143244121.

It is a happy number.

121442341131 is a `hidden beast` number, since 1 + 214 + 4 + 2 + 3 + 411 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (121442341129) and next prime (121442341133).

It is not a de Polignac number, because 121442341131 - 2¹ = 121442341129 is a prime.

It is a super-2 number, since 2×121442341131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121442341095 and 121442341104.

It is not an unprimeable number, because it can be changed into a prime (121442341133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126175 + ... + 508728.

It is an arithmetic number, because the mean of its divisors is an integer number (7465518684).

Almost surely, 2^121442341131 is an apocalyptic number.

121442341131 is a deficient number, since it is larger than the sum of its proper divisors (57730107285).

121442341131 is a wasteful number, since it uses less digits than its factorization.

121442341131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635363 (or 635360 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 121442341131 its reverse (131143244121), we get a palindrome (252585585252).

The spelling of 121442341131 in words is "one hundred twenty-one billion, four hundred forty-two million, three hundred forty-one thousand, one hundred thirty-one".