1012502131247 has 4 divisors (see below), whose sum is σ = 1012510632936. Its totient is φ = 1012493629560.

The previous prime is 1012502131243. The next prime is 1012502131259. The reversal of 1012502131247 is 7421312052101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012502131247 - 2² = 1012502131243 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 (1012502131243) 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, 4069628 + ... + 4311249.

It is an arithmetic number, because the mean of its divisors is an integer number (253127658234).

Almost surely, 2^{1012502131247} is an apocalyptic number.

1012502131247 is a deficient number, since it is larger than the sum of its proper divisors (8501689).

1012502131247 is an equidigital number, since it uses as much as digits as its factorization.

1012502131247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501688.

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 1012502131247 its reverse (7421312052101), we get a palindrome (8433814183348).

The spelling of 1012502131247 in words is "one trillion, twelve billion, five hundred two million, one hundred thirty-one thousand, two hundred forty-seven".