1242020023040 has 36 divisors (see below), whose sum is σ = 2975026089504. Its totient is φ = 496808008704.

The previous prime is 1242020023033. The next prime is 1242020023073. The reversal of 1242020023040 is 403200202421.

It is a super-2 number, since 2×1242020023040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485162792 + ... + 485165351.

Almost surely, 2^{1242020023040} is an apocalyptic number.

1242020023040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242020023040 is an abundant number, since it is smaller than the sum of its proper divisors (1733006066464).

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

1242020023040 is an frugal number, since it uses more digits than its factorization.

1242020023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970328164 (or 970328150 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1242020023040 its reverse (403200202421), we get a palindrome (1645220225461).

The spelling of 1242020023040 in words is "one trillion, two hundred forty-two billion, twenty million, twenty-three thousand, forty".