121045427 has 8 divisors (see below), whose sum is σ = 122774400. Its totient is φ = 119326464.

The previous prime is 121045417. The next prime is 121045433. The reversal of 121045427 is 724540121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121045427 - 2⁶ = 121045363 is a prime.

It is a super-2 number, since 2×121045427² = 29303990795224658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121045396 and 121045405.

It is not an unprimeable number, because it can be changed into a prime (121045417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23774 + ... + 28412.

It is an arithmetic number, because the mean of its divisors is an integer number (15346800).

Almost surely, 2^121045427 is an apocalyptic number.

121045427 is a deficient number, since it is larger than the sum of its proper divisors (1728973).

121045427 is an equidigital number, since it uses as much as digits as its factorization.

121045427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 121045427 is about 11002.0646698699. The cubic root of 121045427 is about 494.6706335266.

Adding to 121045427 its reverse (724540121), we get a palindrome (845585548).

The spelling of 121045427 in words is "one hundred twenty-one million, forty-five thousand, four hundred twenty-seven".