1021103098 has 4 divisors (see below), whose sum is σ = 1531654650. Its totient is φ = 510551548.

The previous prime is 1021103093. The next prime is 1021103107. The reversal of 1021103098 is 8903011201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8903011201 = 7 ⋅1271858743.

It can be written as a sum of positive squares in only one way, i.e., 755315289 + 265787809 = 27483^2 + 16303^2 .

It is not an unprimeable number, because it can be changed into a prime (1021103093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255275773 + ... + 255275776.

Almost surely, 2^1021103098 is an apocalyptic number.

1021103098 is a deficient number, since it is larger than the sum of its proper divisors (510551552).

1021103098 is an equidigital number, since it uses as much as digits as its factorization.

1021103098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510551551.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1021103098 is about 31954.7038477905. The cubic root of 1021103098 is about 1006.9854557853.

Adding to 1021103098 its reverse (8903011201), we get a palindrome (9924114299).

The spelling of 1021103098 in words is "one billion, twenty-one million, one hundred three thousand, ninety-eight".