361131233211121 has 4 divisors (see below), whose sum is σ = 365482211924592. Its totient is φ = 356780254497652.

The previous prime is 361131233211107. The next prime is 361131233211139. The reversal of 361131233211121 is 121112332131163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 361131233211121 - 2²³ = 361131224822513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361131233211101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175489356611 + ... + 2175489356776.

It is an arithmetic number, because the mean of its divisors is an integer number (91370552981148).

Almost surely, 2^{361131233211121} is an apocalyptic number.

It is an amenable number.

361131233211121 is a deficient number, since it is larger than the sum of its proper divisors (4350978713471).

361131233211121 is an equidigital number, since it uses as much as digits as its factorization.

361131233211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350978713470.

The product of its digits is 3888, while the sum is 31.

Adding to 361131233211121 its reverse (121112332131163), we get a palindrome (482243565342284).

The spelling of 361131233211121 in words is "three hundred sixty-one trillion, one hundred thirty-one billion, two hundred thirty-three million, two hundred eleven thousand, one hundred twenty-one".