1025111122429 has 2 divisors, whose sum is σ = 1025111122430. Its totient is φ = 1025111122428.

The previous prime is 1025111122393. The next prime is 1025111122447. The reversal of 1025111122429 is 9242211115201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663817562500 + 361293559929 = 814750^2 + 601077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025111122429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025111122429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025111522429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512555561214 + 512555561215.

It is an arithmetic number, because the mean of its divisors is an integer number (512555561215).

Almost surely, 2^{1025111122429} is an apocalyptic number.

It is an amenable number.

1025111122429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025111122429 is an equidigital number, since it uses as much as digits as its factorization.

1025111122429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 1025111122429 in words is "one trillion, twenty-five billion, one hundred eleven million, one hundred twenty-two thousand, four hundred twenty-nine".