31042211342 has 4 divisors (see below), whose sum is σ = 46563317016. Its totient is φ = 15521105670.

The previous prime is 31042211341. The next prime is 31042211357. The reversal of 31042211342 is 24311224013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24311224013 = 17959 ⋅1353707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042211341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7760552834 + ... + 7760552837.

It is an arithmetic number, because the mean of its divisors is an integer number (11640829254).

Almost surely, 2^31042211342 is an apocalyptic number.

31042211342 is a deficient number, since it is larger than the sum of its proper divisors (15521105674).

31042211342 is a wasteful number, since it uses less digits than its factorization.

31042211342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15521105673.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31042211342 its reverse (24311224013), we get a palindrome (55353435355).

The spelling of 31042211342 in words is "thirty-one billion, forty-two million, two hundred eleven thousand, three hundred forty-two".