1242031031420 has 12 divisors (see below), whose sum is σ = 2608265166024. Its totient is φ = 496812412560.

The previous prime is 1242031031401. The next prime is 1242031031429. The reversal of 1242031031420 is 241301302421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242031031429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31050775766 + ... + 31050775805.

It is an arithmetic number, because the mean of its divisors is an integer number (217355430502).

Almost surely, 2^{1242031031420} is an apocalyptic number.

1242031031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242031031420 is an abundant number, since it is smaller than the sum of its proper divisors (1366234134604).

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

1242031031420 is a wasteful number, since it uses less digits than its factorization.

1242031031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62101551580 (or 62101551578 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1242031031420 its reverse (241301302421), we get a palindrome (1483332333841).

The spelling of 1242031031420 in words is "one trillion, two hundred forty-two billion, thirty-one million, thirty-one thousand, four hundred twenty".