121601640334 has 4 divisors (see below), whose sum is σ = 182402460504. Its totient is φ = 60800820166.

The previous prime is 121601640323. The next prime is 121601640359. The reversal of 121601640334 is 433046106121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 121601640296 and 121601640305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30400410082 + ... + 30400410085.

It is an arithmetic number, because the mean of its divisors is an integer number (45600615126).

Almost surely, 2^121601640334 is an apocalyptic number.

121601640334 is a deficient number, since it is larger than the sum of its proper divisors (60800820170).

121601640334 is an equidigital number, since it uses as much as digits as its factorization.

121601640334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60800820169.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 121601640334 its reverse (433046106121), we get a palindrome (554647746455).

The spelling of 121601640334 in words is "one hundred twenty-one billion, six hundred one million, six hundred forty thousand, three hundred thirty-four".