121347531133 has 2 divisors, whose sum is σ = 121347531134. Its totient is φ = 121347531132.

The previous prime is 121347531091. The next prime is 121347531143. The reversal of 121347531133 is 331135743121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61517392729 + 59830138404 = 248027^2 + 244602^2 .

It is a cyclic number.

It is not a de Polignac number, because 121347531133 - 2¹³ = 121347522941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121347531143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60673765566 + 60673765567.

It is an arithmetic number, because the mean of its divisors is an integer number (60673765567).

Almost surely, 2^121347531133 is an apocalyptic number.

It is an amenable number.

121347531133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121347531133 is an equidigital number, since it uses as much as digits as its factorization.

121347531133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The spelling of 121347531133 in words is "one hundred twenty-one billion, three hundred forty-seven million, five hundred thirty-one thousand, one hundred thirty-three".