3131010421 has 16 divisors (see below), whose sum is σ = 3986657280. Its totient is φ = 2387836080.

The previous prime is 3131010419. The next prime is 3131010461. The reversal of 3131010421 is 1240101313.

It is not a de Polignac number, because 3131010421 - 2¹ = 3131010419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131010395 and 3131010404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131010461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428961 + ... + 436198.

It is an arithmetic number, because the mean of its divisors is an integer number (249166080).

Almost surely, 2^3131010421 is an apocalyptic number.

It is an amenable number.

3131010421 is a deficient number, since it is larger than the sum of its proper divisors (855646859).

3131010421 is a wasteful number, since it uses less digits than its factorization.

3131010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865224.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3131010421 is about 55955.4324529799. The cubic root of 3131010421 is about 1462.9455796332.

Adding to 3131010421 its reverse (1240101313), we get a palindrome (4371111734).

The spelling of 3131010421 in words is "three billion, one hundred thirty-one million, ten thousand, four hundred twenty-one".