1025143103 has 4 divisors (see below), whose sum is σ = 1025307528. Its totient is φ = 1024978680.

The previous prime is 1025143087. The next prime is 1025143109. The reversal of 1025143103 is 3013415201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013415201 = 29 ⋅103910869.

It is a cyclic number.

It is not a de Polignac number, because 1025143103 - 2⁴ = 1025143087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025143109) 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, 72476 + ... + 85457.

It is an arithmetic number, because the mean of its divisors is an integer number (256326882).

Almost surely, 2^1025143103 is an apocalyptic number.

1025143103 is a deficient number, since it is larger than the sum of its proper divisors (164425).

1025143103 is an equidigital number, since it uses as much as digits as its factorization.

1025143103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164424.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1025143103 is about 32017.8560025496. The cubic root of 1025143103 is about 1008.3117576119.

Adding to 1025143103 its reverse (3013415201), we get a palindrome (4038558304).

The spelling of 1025143103 in words is "one billion, twenty-five million, one hundred forty-three thousand, one hundred three".