121230311377 has 8 divisors (see below), whose sum is σ = 138625870592. Its totient is φ = 103853988000.

The previous prime is 121230311351. The next prime is 121230311401. The reversal of 121230311377 is 773113032121.

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

It is not a de Polignac number, because 121230311377 - 2¹¹ = 121230309329 is a prime.

It is a super-3 number, since 3×121230311377³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121230311317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4795449 + ... + 4820662.

It is an arithmetic number, because the mean of its divisors is an integer number (17328233824).

Almost surely, 2^121230311377 is an apocalyptic number.

It is an amenable number.

121230311377 is a deficient number, since it is larger than the sum of its proper divisors (17395559215).

121230311377 is an equidigital number, since it uses as much as digits as its factorization.

121230311377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9617919.

The product of its (nonzero) digits is 5292, while the sum is 31.

Adding to 121230311377 its reverse (773113032121), we get a palindrome (894343343498).

The spelling of 121230311377 in words is "one hundred twenty-one billion, two hundred thirty million, three hundred eleven thousand, three hundred seventy-seven".