1035012421 has 2 divisors, whose sum is σ = 1035012422.
Its totient is φ = 1035012420.
The previous prime is 1035012409. The next prime is 1035012467. The reversal of 1035012421 is 1242105301.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 960380100 + 74632321 = 30990^2 + 8639^2
It is an emirp because it is prime and its reverse (1242105301) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1035012421 - 229 = 498141509 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1035012491) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517506210 + 517506211.
It is an arithmetic number, because the mean of its divisors is an integer number (517506211).
Almost surely, 21035012421 is an apocalyptic number.
It is an amenable number.
1035012421 is a deficient number, since it is larger than the sum of its proper divisors (1).
1035012421 is an equidigital number, since it uses as much as digits as its factorization.
1035012421 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 1035012421 is about 32171.6089277487.
The cubic root of 1035012421 is about 1011.5371883916.
Adding to 1035012421 its reverse (1242105301), we get a palindrome (2277117722).
The spelling of 1035012421 in words is "one billion, thirty-five million, twelve thousand, four hundred twenty-one".