3121400130 has 64 divisors (see below), whose sum is σ = 7593384960. Its totient is φ = 821108736.

The previous prime is 3121400101. The next prime is 3121400131. The reversal of 3121400130 is 310041213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (3121400131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 753906 + ... + 758034.

It is an arithmetic number, because the mean of its divisors is an integer number (118646640).

Almost surely, 2^3121400130 is an apocalyptic number.

3121400130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3121400130 is an abundant number, since it is smaller than the sum of its proper divisors (4471984830).

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

3121400130 is a wasteful number, since it uses less digits than its factorization.

3121400130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3121400130 is about 55869.4919432780. The cubic root of 3121400130 is about 1461.4472622694.

Adding to 3121400130 its reverse (310041213), we get a palindrome (3431441343).

The spelling of 3121400130 in words is "three billion, one hundred twenty-one million, four hundred thousand, one hundred thirty".