121319031 has 8 divisors (see below), whose sum is σ = 162223600. Its totient is φ = 80646912.

The previous prime is 121319017. The next prime is 121319053. The reversal of 121319031 is 130913121.

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

It is not a de Polignac number, because 121319031 - 2⁵ = 121318999 is a prime.

It is a super-2 number, since 2×121319031² = 29436614565557922, 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 = 121318989 and 121319007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121319131) 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, 56890 + ... + 58983.

It is an arithmetic number, because the mean of its divisors is an integer number (20277950).

Almost surely, 2^121319031 is an apocalyptic number.

121319031 is a deficient number, since it is larger than the sum of its proper divisors (40904569).

121319031 is a wasteful number, since it uses less digits than its factorization.

121319031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116225.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 121319031 is about 11014.4918629958. The cubic root of 121319031 is about 495.0430612473.

The spelling of 121319031 in words is "one hundred twenty-one million, three hundred nineteen thousand, thirty-one".