1243214032040 has 64 divisors (see below), whose sum is σ = 2801692108800. Its totient is φ = 496493275392.

The previous prime is 1243214032033. The next prime is 1243214032079. The reversal of 1243214032040 is 402304123421.

It is a super-2 number, since 2×1243214032040² (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 15 ways as a sum of consecutive naturals, for example, 71101139 + ... + 71118621.

It is an arithmetic number, because the mean of its divisors is an integer number (43776439200).

Almost surely, 2^{1243214032040} is an apocalyptic number.

1243214032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243214032040 is an abundant number, since it is smaller than the sum of its proper divisors (1558478076760).

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

1243214032040 is a wasteful number, since it uses less digits than its factorization.

1243214032040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20226 (or 20222 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1243214032040 its reverse (402304123421), we get a palindrome (1645518155461).

The spelling of 1243214032040 in words is "one trillion, two hundred forty-three billion, two hundred fourteen million, thirty-two thousand, forty".