3123131404 has 24 divisors (see below), whose sum is σ = 5816987568. Its totient is φ = 1462087680.

The previous prime is 3123131381. The next prime is 3123131419. The reversal of 3123131404 is 4041313213.

It is a super-2 number, since 2×3123131404² = 19507899533302022432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105862 + ... + 132109.

It is an arithmetic number, because the mean of its divisors is an integer number (242374482).

Almost surely, 2^3123131404 is an apocalyptic number.

3123131404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3123131404 is a deficient number, since it is larger than the sum of its proper divisors (2693856164).

3123131404 is a wasteful number, since it uses less digits than its factorization.

3123131404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238185 (or 238183 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3123131404 is about 55884.9837076115. The cubic root of 3123131404 is about 1461.7174079203.

Adding to 3123131404 its reverse (4041313213), we get a palindrome (7164444617).

The spelling of 3123131404 in words is "three billion, one hundred twenty-three million, one hundred thirty-one thousand, four hundred four".