1015133011021 has 2 divisors, whose sum is σ = 1015133011022. Its totient is φ = 1015133011020.

The previous prime is 1015133011001. The next prime is 1015133011073. The reversal of 1015133011021 is 1201103315101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833559870025 + 181573140996 = 912995^2 + 426114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015133011021 - 2²¹ = 1015130913869 is a prime.

It is a super-3 number, since 3×1015133011021³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1015133011021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1015133011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507566505510 + 507566505511.

It is an arithmetic number, because the mean of its divisors is an integer number (507566505511).

Almost surely, 2^{1015133011021} is an apocalyptic number.

It is an amenable number.

1015133011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015133011021 is an equidigital number, since it uses as much as digits as its factorization.

1015133011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

Adding to 1015133011021 its reverse (1201103315101), we get a palindrome (2216236326122).

The spelling of 1015133011021 in words is "one trillion, fifteen billion, one hundred thirty-three million, eleven thousand, twenty-one".