2103513026 has 4 divisors (see below), whose sum is σ = 3155269542. Its totient is φ = 1051756512.

The previous prime is 2103513023. The next prime is 2103513053. The reversal of 2103513026 is 6203153012.

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., 1714042801 + 389470225 = 41401^2 + 19735^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2103512992 and 2103513010.

It is not an unprimeable number, because it can be changed into a prime (2103513023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525878255 + ... + 525878258.

Almost surely, 2^2103513026 is an apocalyptic number.

2103513026 is a deficient number, since it is larger than the sum of its proper divisors (1051756516).

2103513026 is a wasteful number, since it uses less digits than its factorization.

2103513026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051756515.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2103513026 is about 45864.0711886767. The cubic root of 2103513026 is about 1281.2928477886.

Adding to 2103513026 its reverse (6203153012), we get a palindrome (8306666038).

The spelling of 2103513026 in words is "two billion, one hundred three million, five hundred thirteen thousand, twenty-six".