121231302313011 has 16 divisors (see below), whose sum is σ = 176336684859648. Its totient is φ = 73473414415200.

The previous prime is 121231302312973. The next prime is 121231302313087. The reversal of 121231302313011 is 110313203132121.

It is not a de Polignac number, because 121231302313011 - 2³⁸ = 120956424406067 is a prime.

It is a super-2 number, since 2×121231302313011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121231302313411) 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 15 ways as a sum of consecutive naturals, for example, 26467965 + ... + 30708561.

It is an arithmetic number, because the mean of its divisors is an integer number (11021042803728).

Almost surely, 2^{121231302313011} is an apocalyptic number.

121231302313011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121231302313011 is a deficient number, since it is larger than the sum of its proper divisors (55105382546637).

121231302313011 is a wasteful number, since it uses less digits than its factorization.

121231302313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106922.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121231302313011 its reverse (110313203132121), we get a palindrome (231544505445132).

The spelling of 121231302313011 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred two million, three hundred thirteen thousand, eleven".