121031135 has 4 divisors (see below), whose sum is σ = 145237368. Its totient is φ = 96824904.

The previous prime is 121031117. The next prime is 121031147. The reversal of 121031135 is 531130121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531130121 = 163 ⋅3258467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121031135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12103109 + ... + 12103118.

It is an arithmetic number, because the mean of its divisors is an integer number (36309342).

Almost surely, 2^121031135 is an apocalyptic number.

121031135 is a deficient number, since it is larger than the sum of its proper divisors (24206233).

121031135 is an equidigital number, since it uses as much as digits as its factorization.

121031135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24206232.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 121031135 is about 11001.4151362450. The cubic root of 121031135 is about 494.6511639463.

Adding to 121031135 its reverse (531130121), we get a palindrome (652161256).

The spelling of 121031135 in words is "one hundred twenty-one million, thirty-one thousand, one hundred thirty-five".