3121401030 has 128 divisors (see below), whose sum is σ = 8453846016. Its totient is φ = 730944000.

The previous prime is 3121401029. The next prime is 3121401071. The reversal of 3121401030 is 301041213.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1842864 + ... + 1844556.

It is an arithmetic number, because the mean of its divisors is an integer number (66045672).

Almost surely, 2^3121401030 is an apocalyptic number.

3121401030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a pronic number, being equal to 55869×55870.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121401030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4226923008).

3121401030 is an abundant number, since it is smaller than the sum of its proper divisors (5332444986).

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

3121401030 is a wasteful number, since it uses less digits than its factorization.

3121401030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902.

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

The square root of 3121401030 is about 55869.4999977626. The cubic root of 3121401030 is about 1461.4474027301.

Adding to 3121401030 its reverse (301041213), we get a palindrome (3422442243).

The spelling of 3121401030 in words is "three billion, one hundred twenty-one million, four hundred one thousand, thirty".