31012101422 has 4 divisors (see below), whose sum is σ = 46518152136. Its totient is φ = 15506050710.

The previous prime is 31012101413. The next prime is 31012101443. The reversal of 31012101422 is 22410121013.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31012101422.

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, 7753025354 + ... + 7753025357.

It is an arithmetic number, because the mean of its divisors is an integer number (11629538034).

Almost surely, 2^31012101422 is an apocalyptic number.

31012101422 is a deficient number, since it is larger than the sum of its proper divisors (15506050714).

31012101422 is a wasteful number, since it uses less digits than its factorization.

31012101422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15506050713.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31012101422 its reverse (22410121013), we get a palindrome (53422222435).

The spelling of 31012101422 in words is "thirty-one billion, twelve million, one hundred one thousand, four hundred twenty-two".