1142512504421 has 4 divisors (see below), whose sum is σ = 1161877123200. Its totient is φ = 1123147885644.

The previous prime is 1142512504411. The next prime is 1142512504457. The reversal of 1142512504421 is 1244052152411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1142512504421 - 2²² = 1142508310117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142512504411) 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, 9682309301 + ... + 9682309418.

It is an arithmetic number, because the mean of its divisors is an integer number (290469280800).

Almost surely, 2^{1142512504421} is an apocalyptic number.

It is an amenable number.

1142512504421 is a deficient number, since it is larger than the sum of its proper divisors (19364618779).

1142512504421 is an equidigital number, since it uses as much as digits as its factorization.

1142512504421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19364618778.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 1142512504421 its reverse (1244052152411), we get a palindrome (2386564656832).

The spelling of 1142512504421 in words is "one trillion, one hundred forty-two billion, five hundred twelve million, five hundred four thousand, four hundred twenty-one".