1212431001431 has 8 divisors (see below), whose sum is σ = 1309140035280. Its totient is φ = 1116214126272.

The previous prime is 1212431001389. The next prime is 1212431001437. The reversal of 1212431001431 is 1341001342121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212431001431 is a prime.

It is a super-2 number, since 2×1212431001431² (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 = 1212431001397 and 1212431001406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212431001437) 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, 123034550 + ... + 123044403.

It is an arithmetic number, because the mean of its divisors is an integer number (163642504410).

Almost surely, 2^{1212431001431} is an apocalyptic number.

1212431001431 is a deficient number, since it is larger than the sum of its proper divisors (96709033849).

1212431001431 is a wasteful number, since it uses less digits than its factorization.

1212431001431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246079345.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1212431001431 its reverse (1341001342121), we get a palindrome (2553432343552).

The spelling of 1212431001431 in words is "one trillion, two hundred twelve billion, four hundred thirty-one million, one thousand, four hundred thirty-one".