2431311023400 has 192 divisors, whose sum is σ = 8632978704000. Its totient is φ = 554490101760.

The previous prime is 2431311023399. The next prime is 2431311023441. The reversal of 2431311023400 is 43201131342.

It is a happy number.

It is a super-2 number, since 2×2431311023400² (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 47 ways as a sum of consecutive naturals, for example, 1241164 + ... + 2530436.

It is an arithmetic number, because the mean of its divisors is an integer number (44963430750).

Almost surely, 2^{2431311023400} is an apocalyptic number.

2431311023400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2431311023400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4316489352000).

2431311023400 is an abundant number, since it is smaller than the sum of its proper divisors (6201667680600).

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

2431311023400 is a wasteful number, since it uses less digits than its factorization.

2431311023400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289748 (or 1289739 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2431311023400 its reverse (43201131342), we get a palindrome (2474512154742).

The spelling of 2431311023400 in words is "two trillion, four hundred thirty-one billion, three hundred eleven million, twenty-three thousand, four hundred".