311401222211402 has 8 divisors (see below), whose sum is σ = 467628441925536. Its totient is φ = 155525074902892.

The previous prime is 311401222211399. The next prime is 311401222211419. The reversal of 311401222211402 is 204112222104113.

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

It is a super-2 number, since 2×311401222211402² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87768099188 + ... + 87768102735.

It is an arithmetic number, because the mean of its divisors is an integer number (58453555240692).

Almost surely, 2^{311401222211402} is an apocalyptic number.

311401222211402 is a deficient number, since it is larger than the sum of its proper divisors (156227219714134).

311401222211402 is a wasteful number, since it uses less digits than its factorization.

311401222211402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175536202812.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 311401222211402 its reverse (204112222104113), we get a palindrome (515513444315515).

The spelling of 311401222211402 in words is "three hundred eleven trillion, four hundred one billion, two hundred twenty-two million, two hundred eleven thousand, four hundred two".