31143030142022 has 16 divisors (see below), whose sum is σ = 47306300835840. Its totient is φ = 15374266799112.

The previous prime is 31143030141983. The next prime is 31143030142087. The reversal of 31143030142022 is 22024103034113.

It is a junction number, because it is equal to n+sod(n) for n = 31143030141982 and 31143030142000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17650763 + ... + 19334825.

It is an arithmetic number, because the mean of its divisors is an integer number (2956643802240).

Almost surely, 2^{31143030142022} is an apocalyptic number.

31143030142022 is a deficient number, since it is larger than the sum of its proper divisors (16163270693818).

31143030142022 is a wasteful number, since it uses less digits than its factorization.

31143030142022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801187.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31143030142022 its reverse (22024103034113), we get a palindrome (53167133176135).

The spelling of 31143030142022 in words is "thirty-one trillion, one hundred forty-three billion, thirty million, one hundred forty-two thousand, twenty-two".