121150231529 has 2 divisors, whose sum is σ = 121150231530. Its totient is φ = 121150231528.

The previous prime is 121150231507. The next prime is 121150231541. The reversal of 121150231529 is 925132051121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106633596304 + 14516635225 = 326548^2 + 120485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121150231529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121150231495 and 121150231504.

It is not a weakly prime, because it can be changed into another prime (121150231429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60575115764 + 60575115765.

It is an arithmetic number, because the mean of its divisors is an integer number (60575115765).

Almost surely, 2^121150231529 is an apocalyptic number.

It is an amenable number.

121150231529 is a deficient number, since it is larger than the sum of its proper divisors (1).

121150231529 is an equidigital number, since it uses as much as digits as its factorization.

121150231529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 121150231529 in words is "one hundred twenty-one billion, one hundred fifty million, two hundred thirty-one thousand, five hundred twenty-nine".