3123213320040 has 128 divisors (see below), whose sum is σ = 10665835315200. Its totient is φ = 724223371520.

The previous prime is 3123213320023. The next prime is 3123213320053. The reversal of 3123213320040 is 400233123213.

It is a super-2 number, since 2×3123213320040² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51405960 + ... + 51466679.

It is an arithmetic number, because the mean of its divisors is an integer number (83326838400).

Almost surely, 2^{3123213320040} is an apocalyptic number.

3123213320040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3123213320040 is an abundant number, since it is smaller than the sum of its proper divisors (7542621995160).

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

3123213320040 is a wasteful number, since it uses less digits than its factorization.

3123213320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102872687 (or 102872683 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 3123213320040 its reverse (400233123213), we get a palindrome (3523446443253).

The spelling of 3123213320040 in words is "three trillion, one hundred twenty-three billion, two hundred thirteen million, three hundred twenty thousand, forty".