12042121003 has 16 divisors (see below), whose sum is σ = 13992943104. Its totient is φ = 10241695360.

The previous prime is 12042120943. The next prime is 12042121051. The reversal of 12042121003 is 30012124021.

It is a cyclic number.

It is not a de Polignac number, because 12042121003 - 2¹³ = 12042112811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042161003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161575 + ... + 224032.

It is an arithmetic number, because the mean of its divisors is an integer number (874558944).

Almost surely, 2^12042121003 is an apocalyptic number.

12042121003 is a deficient number, since it is larger than the sum of its proper divisors (1950822101).

12042121003 is a wasteful number, since it uses less digits than its factorization.

12042121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385802.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12042121003 its reverse (30012124021), we get a palindrome (42054245024).

The spelling of 12042121003 in words is "twelve billion, forty-two million, one hundred twenty-one thousand, three".