1212033431429 has 4 divisors (see below), whose sum is σ = 1223360846784. Its totient is φ = 1200706016076.

The previous prime is 1212033431393. The next prime is 1212033431501. The reversal of 1212033431429 is 9241343302121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212033431429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212033431029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5663707517 + ... + 5663707730.

It is an arithmetic number, because the mean of its divisors is an integer number (305840211696).

Almost surely, 2^{1212033431429} is an apocalyptic number.

It is an amenable number.

1212033431429 is a deficient number, since it is larger than the sum of its proper divisors (11327415355).

1212033431429 is a wasteful number, since it uses less digits than its factorization.

1212033431429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11327415354.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 1212033431429 in words is "one trillion, two hundred twelve billion, thirty-three million, four hundred thirty-one thousand, four hundred twenty-nine".