12103220400442 has 8 divisors (see below), whose sum is σ = 18159657740532. Its totient is φ = 6050001153600.

The previous prime is 12103220400421. The next prime is 12103220400463. The reversal of 12103220400442 is 24400402230121.

It is an interprime number because it is at equal distance from previous prime (12103220400421) and next prime (12103220400463).

It can be written as a sum of positive squares in 2 ways, for example, as 11150330102521 + 952890297921 = 3339211^2 + 976161^2 .

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

It is a super-3 number, since 3×12103220400442³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804513909 + ... + 804528952.

Almost surely, 2^{12103220400442} is an apocalyptic number.

12103220400442 is a deficient number, since it is larger than the sum of its proper divisors (6056437340090).

12103220400442 is a wasteful number, since it uses less digits than its factorization.

12103220400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609046624.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12103220400442 its reverse (24400402230121), we get a palindrome (36503622630563).

The spelling of 12103220400442 in words is "twelve trillion, one hundred three billion, two hundred twenty million, four hundred thousand, four hundred forty-two".