1012130021237 has 2 divisors, whose sum is σ = 1012130021238. Its totient is φ = 1012130021236.

The previous prime is 1012130021197. The next prime is 1012130021251. The reversal of 1012130021237 is 7321200312101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 798451260721 + 213678760516 = 893561^2 + 462254^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012130021237 - 2²⁶ = 1012062912373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012130051237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506065010618 + 506065010619.

It is an arithmetic number, because the mean of its divisors is an integer number (506065010619).

Almost surely, 2^{1012130021237} is an apocalyptic number.

It is an amenable number.

1012130021237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012130021237 is an equidigital number, since it uses as much as digits as its factorization.

1012130021237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 1012130021237 its reverse (7321200312101), we get a palindrome (8333330333338).

The spelling of 1012130021237 in words is "one trillion, twelve billion, one hundred thirty million, twenty-one thousand, two hundred thirty-seven".