121130332181 has 2 divisors, whose sum is σ = 121130332182. Its totient is φ = 121130332180.

The previous prime is 121130332171. The next prime is 121130332283. The reversal of 121130332181 is 181233031121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102304022500 + 18826309681 = 319850^2 + 137209^2 .

It is a cyclic number.

It is not a de Polignac number, because 121130332181 - 2¹⁴ = 121130315797 is a prime.

It is a super-2 number, since 2×121130332181² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121130332181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121130332111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565166090 + 60565166091.

It is an arithmetic number, because the mean of its divisors is an integer number (60565166091).

Almost surely, 2^121130332181 is an apocalyptic number.

It is an amenable number.

121130332181 is a deficient number, since it is larger than the sum of its proper divisors (1).

121130332181 is an equidigital number, since it uses as much as digits as its factorization.

121130332181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 121130332181 in words is "one hundred twenty-one billion, one hundred thirty million, three hundred thirty-two thousand, one hundred eighty-one".