1021103201 has 4 divisors (see below), whose sum is σ = 1023150000. Its totient is φ = 1019056404.

The previous prime is 1021103197. The next prime is 1021103261. The reversal of 1021103201 is 1023011201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021103201 - 2² = 1021103197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021103261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022651 + ... + 1023648.

It is an arithmetic number, because the mean of its divisors is an integer number (255787500).

Almost surely, 2^1021103201 is an apocalyptic number.

It is an amenable number.

1021103201 is a deficient number, since it is larger than the sum of its proper divisors (2046799).

1021103201 is an equidigital number, since it uses as much as digits as its factorization.

1021103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046798.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1021103201 is about 31954.7054594468. The cubic root of 1021103201 is about 1006.9854896440.

Adding to 1021103201 its reverse (1023011201), we get a palindrome (2044114402).

The spelling of 1021103201 in words is "one billion, twenty-one million, one hundred three thousand, two hundred one".