121340031 has 8 divisors (see below), whose sum is σ = 167365680. Its totient is φ = 78103872.

The previous prime is 121340027. The next prime is 121340053. The reversal of 121340031 is 130043121.

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

It is not a de Polignac number, because 121340031 - 2² = 121340027 is a prime.

It is a super-2 number, since 2×121340031² = 29446806246161922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121340081) 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, 697270 + ... + 697443.

It is an arithmetic number, because the mean of its divisors is an integer number (20920710).

Almost surely, 2^121340031 is an apocalyptic number.

121340031 is a deficient number, since it is larger than the sum of its proper divisors (46025649).

121340031 is a wasteful number, since it uses less digits than its factorization.

121340031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394745.

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

The square root of 121340031 is about 11015.4451112971. The cubic root of 121340031 is about 495.0716231429.

Adding to 121340031 its reverse (130043121), we get a palindrome (251383152).

The spelling of 121340031 in words is "one hundred twenty-one million, three hundred forty thousand, thirty-one".