2131022142 has 32 divisors (see below), whose sum is σ = 4745548800. Its totient is φ = 708849144.

The previous prime is 2131022123. The next prime is 2131022161. The reversal of 2131022142 is 2412201312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2131022123) and next prime (2131022161).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15328 + ... + 67059.

It is an arithmetic number, because the mean of its divisors is an integer number (148298400).

Almost surely, 2^2131022142 is an apocalyptic number.

2131022142 is an abundant number, since it is smaller than the sum of its proper divisors (2614526658).

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

2131022142 is a wasteful number, since it uses less digits than its factorization.

2131022142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82877 (or 82871 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2131022142 is about 46162.9953750837. The cubic root of 2131022142 is about 1286.8541300980.

Adding to 2131022142 its reverse (2412201312), we get a palindrome (4543223454).

The spelling of 2131022142 in words is "two billion, one hundred thirty-one million, twenty-two thousand, one hundred forty-two".