12102444434 has 4 divisors (see below), whose sum is σ = 18153666654. Its totient is φ = 6051222216.

The previous prime is 12102444377. The next prime is 12102444457. The reversal of 12102444434 is 43444420121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43444420121 = 151693 ⋅286397.

It can be written as a sum of positive squares in only one way, i.e., 11226462025 + 875982409 = 105955^2 + 29597^2 .

It is a super-2 number, since 2×12102444434² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102444397 and 12102444406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025611107 + ... + 3025611110.

Almost surely, 2^12102444434 is an apocalyptic number.

12102444434 is a deficient number, since it is larger than the sum of its proper divisors (6051222220).

12102444434 is an equidigital number, since it uses as much as digits as its factorization.

12102444434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051222219.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 12102444434 its reverse (43444420121), we get a palindrome (55546864555).

The spelling of 12102444434 in words is "twelve billion, one hundred two million, four hundred forty-four thousand, four hundred thirty-four".