121333223987 has 2 divisors, whose sum is σ = 121333223988. Its totient is φ = 121333223986.

The previous prime is 121333223971. The next prime is 121333224011. The reversal of 121333223987 is 789322333121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121333223987 - 2⁴ = 121333223971 is a prime.

It is not a weakly prime, because it can be changed into another prime (121333223087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60666611993 + 60666611994.

It is an arithmetic number, because the mean of its divisors is an integer number (60666611994).

Almost surely, 2^121333223987 is an apocalyptic number.

121333223987 is a deficient number, since it is larger than the sum of its proper divisors (1).

121333223987 is an equidigital number, since it uses as much as digits as its factorization.

121333223987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The spelling of 121333223987 in words is "one hundred twenty-one billion, three hundred thirty-three million, two hundred twenty-three thousand, nine hundred eighty-seven".