156232301121 has 40 divisors (see below), whose sum is σ = 251581733480. Its totient is φ = 96049214208.

The previous prime is 156232301059. The next prime is 156232301143. The reversal of 156232301121 is 121103232651.

156232301121 is a `hidden beast` number, since 1 + 5 + 6 + 232 + 301 + 121 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 52274420496 + 103957880625 = 228636^2 + 322425^2 .

It is not a de Polignac number, because 156232301121 - 2¹⁴ = 156232284737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156232301191) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1015935 + ... + 1159563.

It is an arithmetic number, because the mean of its divisors is an integer number (6289543337).

Almost surely, 2^156232301121 is an apocalyptic number.

It is an amenable number.

156232301121 is a deficient number, since it is larger than the sum of its proper divisors (95349432359).

156232301121 is a wasteful number, since it uses less digits than its factorization.

156232301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144687 (or 144678 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 156232301121 its reverse (121103232651), we get a palindrome (277335533772).

The spelling of 156232301121 in words is "one hundred fifty-six billion, two hundred thirty-two million, three hundred one thousand, one hundred twenty-one".