1213233042434 has 16 divisors (see below), whose sum is σ = 2081881234368. Its totient is φ = 519443727792.

The previous prime is 1213233042433. The next prime is 1213233042443. The reversal of 1213233042434 is 4342403323121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213233042434.

It is not an unprimeable number, because it can be changed into a prime (1213233042433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42759512 + ... + 42787875.

It is an arithmetic number, because the mean of its divisors is an integer number (130117577148).

Almost surely, 2^{1213233042434} is an apocalyptic number.

1213233042434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1213233042434 is a deficient number, since it is larger than the sum of its proper divisors (868648191934).

1213233042434 is a wasteful number, since it uses less digits than its factorization.

1213233042434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85548409.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 1213233042434 its reverse (4342403323121), we get a palindrome (5555636365555).

The spelling of 1213233042434 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, forty-two thousand, four hundred thirty-four".