13122311443402 has 16 divisors (see below), whose sum is σ = 23221048822272. Its totient is φ = 5442433317360.

The previous prime is 13122311443327. The next prime is 13122311443411. The reversal of 13122311443402 is 20434411322131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15117869893 + ... + 15117870760.

It is an arithmetic number, because the mean of its divisors is an integer number (1451315551392).

Almost surely, 2^{13122311443402} is an apocalyptic number.

13122311443402 is a deficient number, since it is larger than the sum of its proper divisors (10098737378870).

13122311443402 is a wasteful number, since it uses less digits than its factorization.

13122311443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30235740693.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 13122311443402 its reverse (20434411322131), we get a palindrome (33556722765533).

The spelling of 13122311443402 in words is "thirteen trillion, one hundred twenty-two billion, three hundred eleven million, four hundred forty-three thousand, four hundred two".