31202401422142 has 4 divisors (see below), whose sum is σ = 46803602133216. Its totient is φ = 15601200711070.

The previous prime is 31202401422133. The next prime is 31202401422151. The reversal of 31202401422142 is 24122410420213.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (31202401422133) and next prime (31202401422151).

It is a self number, because there is not a number n which added to its sum of digits gives 31202401422142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7800600355534 + ... + 7800600355537.

It is an arithmetic number, because the mean of its divisors is an integer number (11700900533304).

Almost surely, 2^{31202401422142} is an apocalyptic number.

31202401422142 is a deficient number, since it is larger than the sum of its proper divisors (15601200711074).

31202401422142 is a wasteful number, since it uses less digits than its factorization.

31202401422142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15601200711073.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 31202401422142 its reverse (24122410420213), we get a palindrome (55324811842355).

The spelling of 31202401422142 in words is "thirty-one trillion, two hundred two billion, four hundred one million, four hundred twenty-two thousand, one hundred forty-two".