1025311042 has 16 divisors (see below), whose sum is σ = 1762899840. Its totient is φ = 438113088.

The previous prime is 1025311031. The next prime is 1025311069. The reversal of 1025311042 is 2401135201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103942 + ... + 113377.

It is an arithmetic number, because the mean of its divisors is an integer number (110181240).

Almost surely, 2^1025311042 is an apocalyptic number.

1025311042 is a deficient number, since it is larger than the sum of its proper divisors (737588798).

1025311042 is a wasteful number, since it uses less digits than its factorization.

1025311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217665.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1025311042 is about 32020.4784786236. The cubic root of 1025311042 is about 1008.3668151682.

Adding to 1025311042 its reverse (2401135201), we get a palindrome (3426446243).

The spelling of 1025311042 in words is "one billion, twenty-five million, three hundred eleven thousand, forty-two".