121342334105320 has 32 divisors (see below), whose sum is σ = 279679282270920. Its totient is φ = 47353105991680.

The previous prime is 121342334105303. The next prime is 121342334105359. The reversal of 121342334105320 is 23501433243121.

It can be written as a sum of positive squares in 4 ways, for example, as 51827127199236 + 69515206906084 = 7199106^2 + 8337578^2 .

It is a super-2 number, since 2×121342334105320² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36994612417 + ... + 36994615696.

Almost surely, 2^{121342334105320} is an apocalyptic number.

121342334105320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121342334105320 is an abundant number, since it is smaller than the sum of its proper divisors (158336948165600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121342334105320 is a wasteful number, since it uses less digits than its factorization.

121342334105320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73989228165 (or 73989228161 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 121342334105320 its reverse (23501433243121), we get a palindrome (144843767348441).

The spelling of 121342334105320 in words is "one hundred twenty-one trillion, three hundred forty-two billion, three hundred thirty-four million, one hundred five thousand, three hundred twenty".