31022421421442 has 16 divisors (see below), whose sum is σ = 50872664617632. Its totient is φ = 14070905565120.

The previous prime is 31022421421403. The next prime is 31022421421463. The reversal of 31022421421442 is 24412412422013.

It is a junction number, because it is equal to n+sod(n) for n = 31022421421399 and 31022421421408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1509743543 + ... + 1509764090.

It is an arithmetic number, because the mean of its divisors is an integer number (3179541538602).

Almost surely, 2^{31022421421442} is an apocalyptic number.

31022421421442 is a deficient number, since it is larger than the sum of its proper divisors (19850243196190).

31022421421442 is a wasteful number, since it uses less digits than its factorization.

31022421421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019508113.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 31022421421442 its reverse (24412412422013), we get a palindrome (55434833843455).

The spelling of 31022421421442 in words is "thirty-one trillion, twenty-two billion, four hundred twenty-one million, four hundred twenty-one thousand, four hundred forty-two".