120155434401 has 16 divisors (see below), whose sum is σ = 165062897024. Its totient is φ = 77689632384.

The previous prime is 120155434387. The next prime is 120155434409. The reversal of 120155434401 is 104434551021.

It is not a de Polignac number, because 120155434401 - 2⁹ = 120155433889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120155434409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694461 + ... + 1763946.

It is an arithmetic number, because the mean of its divisors is an integer number (10316431064).

Almost surely, 2^120155434401 is an apocalyptic number.

It is an amenable number.

120155434401 is a deficient number, since it is larger than the sum of its proper divisors (44907462623).

120155434401 is a wasteful number, since it uses less digits than its factorization.

120155434401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458760.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 120155434401 its reverse (104434551021), we get a palindrome (224589985422).

The spelling of 120155434401 in words is "one hundred twenty billion, one hundred fifty-five million, four hundred thirty-four thousand, four hundred one".