1212431001429 has 8 divisors (see below), whose sum is σ = 1616579907040. Its totient is φ = 808284715056.

The previous prime is 1212431001389. The next prime is 1212431001437. The reversal of 1212431001429 is 9241001342121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212431001429 - 2¹⁶ = 1212430935893 is a prime.

It is a super-2 number, since 2×1212431001429² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212431001396 and 1212431001405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212431001479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087734 + ... + 1899480.

It is an arithmetic number, because the mean of its divisors is an integer number (202072488380).

Almost surely, 2^{1212431001429} is an apocalyptic number.

It is an amenable number.

1212431001429 is a deficient number, since it is larger than the sum of its proper divisors (404148905611).

1212431001429 is an equidigital number, since it uses as much as digits as its factorization.

1212431001429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309619.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 1212431001429 in words is "one trillion, two hundred twelve billion, four hundred thirty-one million, one thousand, four hundred twenty-nine".