311121312029 has 8 divisors (see below), whose sum is σ = 339896255520. Its totient is φ = 282428233200.

The previous prime is 311121311989. The next prime is 311121312083. The reversal of 311121312029 is 920213121113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311121312029 - 2¹² = 311121307933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311121311989 and 311121312007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311121312529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20458214 + ... + 20473415.

It is an arithmetic number, because the mean of its divisors is an integer number (42487031940).

Almost surely, 2^311121312029 is an apocalyptic number.

It is an amenable number.

311121312029 is a deficient number, since it is larger than the sum of its proper divisors (28774943491).

311121312029 is a wasteful number, since it uses less digits than its factorization.

311121312029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40932331.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 311121312029 in words is "three hundred eleven billion, one hundred twenty-one million, three hundred twelve thousand, twenty-nine".