31101101121321 has 64 divisors (see below), whose sum is σ = 57449982965760. Its totient is φ = 16155024626880.

The previous prime is 31101101121151. The next prime is 31101101121347. The reversal of 31101101121321 is 12312110110113.

31101101121321 is a `hidden beast` number, since 3 + 110 + 110 + 1 + 121 + 321 = 666.

It is not a de Polignac number, because 31101101121321 - 2⁹ = 31101101120809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31101101121294 and 31101101121303.

It is not an unprimeable number, because it can be changed into a prime (31101101126321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23721270 + ... + 24998016.

It is an arithmetic number, because the mean of its divisors is an integer number (897655983840).

Almost surely, 2^{31101101121321} is an apocalyptic number.

It is an amenable number.

31101101121321 is a deficient number, since it is larger than the sum of its proper divisors (26348881844439).

31101101121321 is a wasteful number, since it uses less digits than its factorization.

31101101121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288491 (or 1288485 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 31101101121321 its reverse (12312110110113), we get a palindrome (43413211231434).

The spelling of 31101101121321 in words is "thirty-one trillion, one hundred one billion, one hundred one million, one hundred twenty-one thousand, three hundred twenty-one".