31422122142 has 32 divisors (see below), whose sum is σ = 66553583904. Its totient is φ = 9856051200.

The previous prime is 31422122131. The next prime is 31422122183. The reversal of 31422122142 is 24122122413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571542 + ... + 624102.

It is an arithmetic number, because the mean of its divisors is an integer number (2079799497).

Almost surely, 2^31422122142 is an apocalyptic number.

31422122142 is an abundant number, since it is smaller than the sum of its proper divisors (35131461762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31422122142 is a wasteful number, since it uses less digits than its factorization.

31422122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58444.

The product of its digits is 1536, while the sum is 24.

Adding to 31422122142 its reverse (24122122413), we get a palindrome (55544244555).

The spelling of 31422122142 in words is "thirty-one billion, four hundred twenty-two million, one hundred twenty-two thousand, one hundred forty-two".