31420131142 has 16 divisors (see below), whose sum is σ = 49944535200. Its totient is φ = 14798378560.

The previous prime is 31420131133. The next prime is 31420131143. The reversal of 31420131142 is 24113102413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420131143) 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, 6604042 + ... + 6608797.

It is an arithmetic number, because the mean of its divisors is an integer number (3121533450).

Almost surely, 2^31420131142 is an apocalyptic number.

31420131142 is a deficient number, since it is larger than the sum of its proper divisors (18524404058).

31420131142 is a wasteful number, since it uses less digits than its factorization.

31420131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212911.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31420131142 its reverse (24113102413), we get a palindrome (55533233555).

The spelling of 31420131142 in words is "thirty-one billion, four hundred twenty million, one hundred thirty-one thousand, one hundred forty-two".