121031220313 has 8 divisors (see below), whose sum is σ = 128041496000. Its totient is φ = 114084965808.

The previous prime is 121031220293. The next prime is 121031220341. The reversal of 121031220313 is 313022130121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121031220313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121031220383) 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, 16001406 + ... + 16008967.

It is an arithmetic number, because the mean of its divisors is an integer number (16005187000).

Almost surely, 2^121031220313 is an apocalyptic number.

It is an amenable number.

121031220313 is a deficient number, since it is larger than the sum of its proper divisors (7010275687).

121031220313 is a wasteful number, since it uses less digits than its factorization.

121031220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32010591.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121031220313 its reverse (313022130121), we get a palindrome (434053350434).

The spelling of 121031220313 in words is "one hundred twenty-one billion, thirty-one million, two hundred twenty thousand, three hundred thirteen".