31442101004143 has 8 divisors (see below), whose sum is σ = 31470795448560. Its totient is φ = 31413407538240.

The previous prime is 31442101004087. The next prime is 31442101004147. The reversal of 31442101004143 is 34140010124413.

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-31442101004143 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 (31442101004147) 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, 74414988 + ... + 74836318.

It is an arithmetic number, because the mean of its divisors is an integer number (3933849431070).

Almost surely, 2^{31442101004143} is an apocalyptic number.

31442101004143 is a deficient number, since it is larger than the sum of its proper divisors (28694444417).

31442101004143 is a wasteful number, since it uses less digits than its factorization.

31442101004143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489257.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 31442101004143 its reverse (34140010124413), we get a palindrome (65582111128556).

The spelling of 31442101004143 in words is "thirty-one trillion, four hundred forty-two billion, one hundred one million, four thousand, one hundred forty-three".