3123312233240 has 32 divisors (see below), whose sum is σ = 7027561589760. Its totient is φ = 1249305504000.

The previous prime is 3123312233233. The next prime is 3123312233287. The reversal of 3123312233240 is 423322133213.

It is a happy number.

It is a congruent number.

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, 2159465 + ... + 3303015.

It is an arithmetic number, because the mean of its divisors is an integer number (219611299680).

Almost surely, 2^{3123312233240} is an apocalyptic number.

It is an amenable number.

3123312233240 is an abundant number, since it is smaller than the sum of its proper divisors (3904249356520).

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

3123312233240 is a wasteful number, since it uses less digits than its factorization.

3123312233240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211843 (or 1211839 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 3123312233240 its reverse (423322133213), we get a palindrome (3546634366453).

The spelling of 3123312233240 in words is "three trillion, one hundred twenty-three billion, three hundred twelve million, two hundred thirty-three thousand, two hundred forty".