31144504135042 has 8 divisors (see below), whose sum is σ = 46889142757632. Its totient is φ = 15514789882500.

The previous prime is 31144504135001. The next prime is 31144504135061. The reversal of 31144504135042 is 24053140544113.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 31144504134992 and 31144504135010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28731091834 + ... + 28731092917.

It is an arithmetic number, because the mean of its divisors is an integer number (5861142844704).

Almost surely, 2^{31144504135042} is an apocalyptic number.

31144504135042 is a deficient number, since it is larger than the sum of its proper divisors (15744638622590).

31144504135042 is a wasteful number, since it uses less digits than its factorization.

31144504135042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57462185024.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 31144504135042 its reverse (24053140544113), we get a palindrome (55197644679155).

The spelling of 31144504135042 in words is "thirty-one trillion, one hundred forty-four billion, five hundred four million, one hundred thirty-five thousand, forty-two".