31201342442 has 16 divisors (see below), whose sum is σ = 49269124800. Its totient is φ = 14778429120.

The previous prime is 31201342441. The next prime is 31201342451. The reversal of 31201342442 is 24424310213.

It is a super-4 number, since 4×31201342442⁴ (a number of 43 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (31201342441) 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, 648659 + ... + 695097.

It is an arithmetic number, because the mean of its divisors is an integer number (3079320300).

Almost surely, 2^31201342442 is an apocalyptic number.

31201342442 is a deficient number, since it is larger than the sum of its proper divisors (18067782358).

31201342442 is a wasteful number, since it uses less digits than its factorization.

31201342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64141.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31201342442 its reverse (24424310213), we get a palindrome (55625652655).

The spelling of 31201342442 in words is "thirty-one billion, two hundred one million, three hundred forty-two thousand, four hundred forty-two".