121322031 has 16 divisors (see below), whose sum is σ = 164706048. Its totient is φ = 79419200.

The previous prime is 121322029. The next prime is 121322053. The reversal of 121322031 is 130223121.

It is a cyclic number.

It is not a de Polignac number, because 121322031 - 2¹ = 121322029 is a prime.

It is a super-2 number, since 2×121322031² = 29438070411929922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121322031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58840 + ... + 60866.

It is an arithmetic number, because the mean of its divisors is an integer number (10294128).

Almost surely, 2^121322031 is an apocalyptic number.

121322031 is a deficient number, since it is larger than the sum of its proper divisors (43384017).

121322031 is a wasteful number, since it uses less digits than its factorization.

121322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121322031 is about 11014.6280463754. The cubic root of 121322031 is about 495.0471417198.

Adding to 121322031 its reverse (130223121), we get a palindrome (251545152).

The spelling of 121322031 in words is "one hundred twenty-one million, three hundred twenty-two thousand, thirty-one".