121052541487 has 2 divisors, whose sum is σ = 121052541488. Its totient is φ = 121052541486.

The previous prime is 121052541457. The next prime is 121052541509. The reversal of 121052541487 is 784145250121.

It is a strong prime.

It is an emirp because it is prime and its reverse (784145250121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121052541487 - 2¹⁹ = 121052017199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121052541457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60526270743 + 60526270744.

It is an arithmetic number, because the mean of its divisors is an integer number (60526270744).

Almost surely, 2^121052541487 is an apocalyptic number.

121052541487 is a deficient number, since it is larger than the sum of its proper divisors (1).

121052541487 is an equidigital number, since it uses as much as digits as its factorization.

121052541487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 121052541487 in words is "one hundred twenty-one billion, fifty-two million, five hundred forty-one thousand, four hundred eighty-seven".