121002047 has 2 divisors, whose sum is σ = 121002048. Its totient is φ = 121002046.

The previous prime is 121002041. The next prime is 121002061. The reversal of 121002047 is 740200121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121002047 - 2⁶ = 121001983 is a prime.

It is a super-3 number, since 3×121002047³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121002041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501023 + 60501024.

It is an arithmetic number, because the mean of its divisors is an integer number (60501024).

Almost surely, 2^121002047 is an apocalyptic number.

121002047 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002047 is an equidigital number, since it uses as much as digits as its factorization.

121002047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 121002047 is about 11000.0930450610. The cubic root of 121002047 is about 494.6115334664.

Adding to 121002047 its reverse (740200121), we get a palindrome (861202168).

The spelling of 121002047 in words is "one hundred twenty-one million, two thousand, forty-seven".