3121130142 has 48 divisors (see below), whose sum is σ = 7364513520. Its totient is φ = 949550976.

The previous prime is 3121130137. The next prime is 3121130161. The reversal of 3121130142 is 2410311213.

3121130142 is a `hidden beast` number, since 312 + 11 + 301 + 42 = 666.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54108 + ... + 95759.

It is an arithmetic number, because the mean of its divisors is an integer number (153427365).

Almost surely, 2^3121130142 is an apocalyptic number.

3121130142 is an abundant number, since it is smaller than the sum of its proper divisors (4243383378).

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

3121130142 is a wasteful number, since it uses less digits than its factorization.

3121130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149977 (or 149974 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3121130142 is about 55867.0756528387. The cubic root of 3121130142 is about 1461.4051247047.

Adding to 3121130142 its reverse (2410311213), we get a palindrome (5531441355).

The spelling of 3121130142 in words is "three billion, one hundred twenty-one million, one hundred thirty thousand, one hundred forty-two".