121145043 has 12 divisors (see below), whose sum is σ = 171588440. Its totient is φ = 76012032.

The previous prime is 121145041. The next prime is 121145053. The reversal of 121145043 is 340541121.

It is not a de Polignac number, because 121145043 - 2¹ = 121145041 is a prime.

It is a super-3 number, since 3×121145043³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121145041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68998 + ... + 70731.

Almost surely, 2^121145043 is an apocalyptic number.

121145043 is a deficient number, since it is larger than the sum of its proper divisors (50443397).

121145043 is a wasteful number, since it uses less digits than its factorization.

121145043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139766 (or 139749 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121145043 is about 11006.5908890991. The cubic root of 121145043 is about 494.8062949871.

Adding to 121145043 its reverse (340541121), we get a palindrome (461686164).

The spelling of 121145043 in words is "one hundred twenty-one million, one hundred forty-five thousand, forty-three".