181630223023241 has 32 divisors (see below), whose sum is σ = 194697004320000. Its totient is φ = 168845183907840.

The previous prime is 181630223023219. The next prime is 181630223023267. The reversal of 181630223023241 is 142320322036181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181630223023241 is a prime.

It is a super-2 number, since 2×181630223023241² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 181630223023195 and 181630223023204.

It is not an unprimeable number, because it can be changed into a prime (181630223023211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260559035 + ... + 261255183.

It is an arithmetic number, because the mean of its divisors is an integer number (6084281385000).

Almost surely, 2^{181630223023241} is an apocalyptic number.

It is an amenable number.

181630223023241 is a deficient number, since it is larger than the sum of its proper divisors (13066781296759).

181630223023241 is a wasteful number, since it uses less digits than its factorization.

181630223023241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696929.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 181630223023241 in words is "one hundred eighty-one trillion, six hundred thirty billion, two hundred twenty-three million, twenty-three thousand, two hundred forty-one".