311146405429 has 4 divisors (see below), whose sum is σ = 312245862976. Its totient is φ = 310046947884.

The previous prime is 311146405421. The next prime is 311146405463. The reversal of 311146405429 is 924504641113.

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: 924504641113 = 113 ⋅8181457001.

It is a cyclic number.

It is not a de Polignac number, because 311146405429 - 2³ = 311146405421 is a prime.

It is a super-3 number, since 3×311146405429³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 311146405391 and 311146405400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311146405421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549728349 + ... + 549728914.

It is an arithmetic number, because the mean of its divisors is an integer number (78061465744).

Almost surely, 2^311146405429 is an apocalyptic number.

It is an amenable number.

311146405429 is a deficient number, since it is larger than the sum of its proper divisors (1099457547).

311146405429 is a wasteful number, since it uses less digits than its factorization.

311146405429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099457546.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 311146405429 in words is "three hundred eleven billion, one hundred forty-six million, four hundred five thousand, four hundred twenty-nine".