121020030313 has 24 divisors (see below), whose sum is σ = 151821909960. Its totient is φ = 95616702720.

The previous prime is 121020030289. The next prime is 121020030319. The reversal of 121020030313 is 313030020121.

It can be written as a sum of positive squares in 4 ways, for example, as 1423024729 + 119597005584 = 37723^2 + 345828^2 .

It is not a de Polignac number, because 121020030313 - 2¹⁷ = 121019899241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121020030319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317653 + ... + 585613.

It is an arithmetic number, because the mean of its divisors is an integer number (6325912915).

Almost surely, 2^121020030313 is an apocalyptic number.

121020030313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121020030313 is a deficient number, since it is larger than the sum of its proper divisors (30801879647).

121020030313 is a wasteful number, since it uses less digits than its factorization.

121020030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268697 (or 268690 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 121020030313 its reverse (313030020121), we get a palindrome (434050050434).

The spelling of 121020030313 in words is "one hundred twenty-one billion, twenty million, thirty thousand, three hundred thirteen".