121130343131 has 6 divisors (see below), whose sum is σ = 140906725740. Its totient is φ = 103826008356.

The previous prime is 121130343101. The next prime is 121130343227. The reversal of 121130343131 is 131343031121.

It is not a de Polignac number, because 121130343131 - 2¹⁴ = 121130326747 is a prime.

It is a super-2 number, since 2×121130343131² (a number of 23 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 = 121130343097 and 121130343106.

It is not an unprimeable number, because it can be changed into a prime (121130343101) 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, 1236023861 + ... + 1236023958.

It is an arithmetic number, because the mean of its divisors is an integer number (23484454290).

Almost surely, 2^121130343131 is an apocalyptic number.

121130343131 is a deficient number, since it is larger than the sum of its proper divisors (19776382609).

121130343131 is an equidigital number, since it uses as much as digits as its factorization.

121130343131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472047833 (or 2472047826 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121130343131 its reverse (131343031121), we get a palindrome (252473374252).

The spelling of 121130343131 in words is "one hundred twenty-one billion, one hundred thirty million, three hundred forty-three thousand, one hundred thirty-one".