311121432041 has 4 divisors (see below), whose sum is σ = 355567350912. Its totient is φ = 266675513172.

The previous prime is 311121432031. The next prime is 311121432043. The reversal of 311121432041 is 140234121113.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140234121113 = 32713 ⋅4286801.

It is a cyclic number.

It is not a de Polignac number, because 311121432041 - 2¹⁰ = 311121431017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311121431998 and 311121432016.

It is not an unprimeable number, because it can be changed into a prime (311121432043) 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, 22222959425 + ... + 22222959438.

It is an arithmetic number, because the mean of its divisors is an integer number (88891837728).

Almost surely, 2^311121432041 is an apocalyptic number.

It is an amenable number.

311121432041 is a deficient number, since it is larger than the sum of its proper divisors (44445918871).

311121432041 is an equidigital number, since it uses as much as digits as its factorization.

311121432041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44445918870.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 311121432041 its reverse (140234121113), we get a palindrome (451355553154).

The spelling of 311121432041 in words is "three hundred eleven billion, one hundred twenty-one million, four hundred thirty-two thousand, forty-one".