1231303040140 has 96 divisors (see below), whose sum is σ = 2673113159808. Its totient is φ = 476195328000.

The previous prime is 1231303040113. The next prime is 1231303040161. The reversal of 1231303040140 is 410403031321.

It is a super-2 number, since 2×1231303040140² (a number of 25 digits) contains 22 as substring.

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, 29169850 + ... + 29212030.

It is an arithmetic number, because the mean of its divisors is an integer number (27844928748).

Almost surely, 2^{1231303040140} is an apocalyptic number.

1231303040140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231303040140 is an abundant number, since it is smaller than the sum of its proper divisors (1441810119668).

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

1231303040140 is a wasteful number, since it uses less digits than its factorization.

1231303040140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42659 (or 42657 counting only the distinct ones).

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

Adding to 1231303040140 its reverse (410403031321), we get a palindrome (1641706071461).

The spelling of 1231303040140 in words is "one trillion, two hundred thirty-one billion, three hundred three million, forty thousand, one hundred forty".