2031432124421 has 4 divisors (see below), whose sum is σ = 2321636713632. Its totient is φ = 1741227535212.

The previous prime is 2031432124417. The next prime is 2031432124489. The reversal of 2031432124421 is 1244212341302.

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 not a de Polignac number, because 2031432124421 - 2² = 2031432124417 is a prime.

It is a super-2 number, since 2×2031432124421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031432124411) 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 3 ways as a sum of consecutive naturals, for example, 145102294595 + ... + 145102294608.

It is an arithmetic number, because the mean of its divisors is an integer number (580409178408).

Almost surely, 2^{2031432124421} is an apocalyptic number.

It is an amenable number.

2031432124421 is a deficient number, since it is larger than the sum of its proper divisors (290204589211).

2031432124421 is an equidigital number, since it uses as much as digits as its factorization.

2031432124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290204589210.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 2031432124421 its reverse (1244212341302), we get a palindrome (3275644465723).

The spelling of 2031432124421 in words is "two trillion, thirty-one billion, four hundred thirty-two million, one hundred twenty-four thousand, four hundred twenty-one".