1013011898 has 4 divisors (see below), whose sum is σ = 1519517850. Its totient is φ = 506505948.

The previous prime is 1013011897. The next prime is 1013012027. The reversal of 1013011898 is 8981103101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 986148409 + 26863489 = 31403^2 + 5183^2 .

It is not an unprimeable number, because it can be changed into a prime (1013011897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253252973 + ... + 253252976.

Almost surely, 2^1013011898 is an apocalyptic number.

1013011898 is a deficient number, since it is larger than the sum of its proper divisors (506505952).

1013011898 is an equidigital number, since it uses as much as digits as its factorization.

1013011898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506505951.

The product of its (nonzero) digits is 1728, while the sum is 32.

The square root of 1013011898 is about 31827.8478380176. The cubic root of 1013011898 is about 1004.3186219893.

Adding to 1013011898 its reverse (8981103101), we get a palindrome (9994114999).

The spelling of 1013011898 in words is "one billion, thirteen million, eleven thousand, eight hundred ninety-eight".