120611142161405 has 24 divisors (see below), whose sum is σ = 168363994300632. Its totient is φ = 82704446385792.

The previous prime is 120611142161359. The next prime is 120611142161441. The reversal of 120611142161405 is 504161241116021.

It can be written as a sum of positive squares in 4 ways, for example, as 2794293364996 + 117816848796409 = 1671614^2 + 10854347^2 .

It is a de Polignac number, because none of the positive numbers 2^k-120611142161405 is a prime.

It is a super-2 number, since 2×120611142161405² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69331619 + ... + 71049951.

It is an arithmetic number, because the mean of its divisors is an integer number (7015166429193).

Almost surely, 2^{120611142161405} is an apocalyptic number.

It is an amenable number.

120611142161405 is a deficient number, since it is larger than the sum of its proper divisors (47752852139227).

120611142161405 is a wasteful number, since it uses less digits than its factorization.

120611142161405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004845 (or 2004838 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

Adding to 120611142161405 its reverse (504161241116021), we get a palindrome (624772383277426).

The spelling of 120611142161405 in words is "one hundred twenty trillion, six hundred eleven billion, one hundred forty-two million, one hundred sixty-one thousand, four hundred five".