310101999942 has 128 divisors (see below), whose sum is σ = 729615237120. Its totient is φ = 86043242880.

The previous prime is 310101999941. The next prime is 310102000001. The reversal of 310101999942 is 249999101013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 310101999891 and 310101999900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310101999941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92318059 + ... + 92321417.

It is an arithmetic number, because the mean of its divisors is an integer number (5700119040).

Almost surely, 2^310101999942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 310101999942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364807618560).

310101999942 is an abundant number, since it is smaller than the sum of its proper divisors (419513237178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

310101999942 is a wasteful number, since it uses less digits than its factorization.

310101999942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898.

The product of its (nonzero) digits is 157464, while the sum is 48.

The spelling of 310101999942 in words is "three hundred ten billion, one hundred one million, nine hundred ninety-nine thousand, nine hundred forty-two".