1012521323151 has 12 divisors (see below), whose sum is σ = 1575033169528. Its totient is φ = 623090044944.

The previous prime is 1012521323141. The next prime is 1012521323153. The reversal of 1012521323151 is 1513231252101.

1012521323151 is a `hidden beast` number, since 10 + 125 + 213 + 2 + 315 + 1 = 666.

It is not a de Polignac number, because 1012521323151 - 2⁵ = 1012521323119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012521323153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4327014085 + ... + 4327014318.

Almost surely, 2^{1012521323151} is an apocalyptic number.

1012521323151 is a deficient number, since it is larger than the sum of its proper divisors (562511846377).

1012521323151 is a wasteful number, since it uses less digits than its factorization.

1012521323151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654028422 (or 8654028419 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 1012521323151 its reverse (1513231252101), we get a palindrome (2525752575252).

The spelling of 1012521323151 in words is "one trillion, twelve billion, five hundred twenty-one million, three hundred twenty-three thousand, one hundred fifty-one".