1031234421140 has 192 divisors, whose sum is σ = 2821336842240. Its totient is φ = 307013583360.

The previous prime is 1031234421047. The next prime is 1031234421143. The reversal of 1031234421140 is 411244321301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031234421143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25446734 + ... + 25487226.

It is an arithmetic number, because the mean of its divisors is an integer number (14694462720).

Almost surely, 2^{1031234421140} is an apocalyptic number.

1031234421140 is a gapful number since it is divisible by the number (10) 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 1031234421140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410668421120).

1031234421140 is an abundant number, since it is smaller than the sum of its proper divisors (1790102421100).

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

1031234421140 is a wasteful number, since it uses less digits than its factorization.

1031234421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41262 (or 41260 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1031234421140 its reverse (411244321301), we get a palindrome (1442478742441).

The spelling of 1031234421140 in words is "one trillion, thirty-one billion, two hundred thirty-four million, four hundred twenty-one thousand, one hundred forty".