31144234024021 has 8 divisors (see below), whose sum is σ = 31731945799680. Its totient is φ = 30556525386192.

The previous prime is 31144234024019. The next prime is 31144234024073. The reversal of 31144234024021 is 12042043244113.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31144234024021 - 2¹ = 31144234024019 is a prime.

It is a super-3 number, since 3×31144234024021³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31144234024081) 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, 32277660 + ... + 33228538.

It is an arithmetic number, because the mean of its divisors is an integer number (3966493224960).

Almost surely, 2^{31144234024021} is an apocalyptic number.

It is an amenable number.

31144234024021 is a deficient number, since it is larger than the sum of its proper divisors (587711775659).

31144234024021 is an equidigital number, since it uses as much as digits as its factorization.

31144234024021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568915.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 31144234024021 its reverse (12042043244113), we get a palindrome (43186277268134).

The spelling of 31144234024021 in words is "thirty-one trillion, one hundred forty-four billion, two hundred thirty-four million, twenty-four thousand, twenty-one".