1012502131245 has 192 divisors, whose sum is σ = 2077282713600. Its totient is φ = 463984122240.

The previous prime is 1012502131243. The next prime is 1012502131259. The reversal of 1012502131245 is 5421312052101.

It is a happy number.

1012502131245 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 502 + 131 + 24 + 5 = 666.

It is not a de Polignac number, because 1012502131245 - 2¹ = 1012502131243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 191 ways as a sum of consecutive naturals, for example, 256782744 + ... + 256786686.

It is an arithmetic number, because the mean of its divisors is an integer number (10819180800).

Almost surely, 2^{1012502131245} is an apocalyptic number.

1012502131245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012502131245 is an abundant number, since it is smaller than the sum of its proper divisors (1064780582355).

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

1012502131245 is a wasteful number, since it uses less digits than its factorization.

1012502131245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485 (or 4460 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 1012502131245 its reverse (5421312052101), we get a palindrome (6433814183346).

The spelling of 1012502131245 in words is "one trillion, twelve billion, five hundred two million, one hundred thirty-one thousand, two hundred forty-five".