121230071 has 4 divisors (see below), whose sum is σ = 124186944. Its totient is φ = 118273200.

The previous prime is 121230047. The next prime is 121230091. The reversal of 121230071 is 170032121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121230071 - 2¹⁰ = 121229047 is a prime.

It is a super-2 number, since 2×121230071² = 29393460229330082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478375 + ... + 1478456.

It is an arithmetic number, because the mean of its divisors is an integer number (31046736).

Almost surely, 2^121230071 is an apocalyptic number.

121230071 is a deficient number, since it is larger than the sum of its proper divisors (2956873).

121230071 is an equidigital number, since it uses as much as digits as its factorization.

121230071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956872.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 121230071 is about 11010.4528063109. The cubic root of 121230071 is about 494.9220310484.

Adding to 121230071 its reverse (170032121), we get a palindrome (291262192).

The spelling of 121230071 in words is "one hundred twenty-one million, two hundred thirty thousand, seventy-one".