4021432401031 has 4 divisors (see below), whose sum is σ = 4021597515600. Its totient is φ = 4021267286464.

The previous prime is 4021432401029. The next prime is 4021432401089. The reversal of 4021432401031 is 1301042341204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4021432401031 - 2¹ = 4021432401029 is a prime.

It is a super-2 number, since 2×4021432401031² (a number of 26 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 = 4021432400987 and 4021432401005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021432401011) 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, 82520746 + ... + 82569463.

It is an arithmetic number, because the mean of its divisors is an integer number (1005399378900).

Almost surely, 2^{4021432401031} is an apocalyptic number.

4021432401031 is a deficient number, since it is larger than the sum of its proper divisors (165114569).

4021432401031 is a wasteful number, since it uses less digits than its factorization.

4021432401031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165114568.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4021432401031 its reverse (1301042341204), we get a palindrome (5322474742235).

The spelling of 4021432401031 in words is "four trillion, twenty-one billion, four hundred thirty-two million, four hundred one thousand, thirty-one".