1212432525123 has 16 divisors (see below), whose sum is σ = 1656445408800. Its totient is φ = 788364472320.

The previous prime is 1212432525113. The next prime is 1212432525197. The reversal of 1212432525123 is 3215252342121.

It is not a de Polignac number, because 1212432525123 - 2⁵ = 1212432525091 is a prime.

It is a super-2 number, since 2×1212432525123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212432525113) 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, 844078 + ... + 1771251.

It is an arithmetic number, because the mean of its divisors is an integer number (103527838050).

Almost surely, 2^{1212432525123} is an apocalyptic number.

1212432525123 is a deficient number, since it is larger than the sum of its proper divisors (444012883677).

1212432525123 is a wasteful number, since it uses less digits than its factorization.

1212432525123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619142.

The product of its digits is 28800, while the sum is 33.

Adding to 1212432525123 its reverse (3215252342121), we get a palindrome (4427684867244).

The spelling of 1212432525123 in words is "one trillion, two hundred twelve billion, four hundred thirty-two million, five hundred twenty-five thousand, one hundred twenty-three".