1020125034 has 48 divisors (see below), whose sum is σ = 2279163744. Its totient is φ = 329565600.

The previous prime is 1020125023. The next prime is 1020125111. The reversal of 1020125034 is 4305210201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1020124998 and 1020125016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96364 + ... + 106424.

It is an arithmetic number, because the mean of its divisors is an integer number (47482578).

Almost surely, 2^1020125034 is an apocalyptic number.

1020125034 is an abundant number, since it is smaller than the sum of its proper divisors (1259038710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020125034 is a wasteful number, since it uses less digits than its factorization.

1020125034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243 (or 10240 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020125034 is about 31939.3962685584. The cubic root of 1020125034 is about 1006.6638392730.

Adding to 1020125034 its reverse (4305210201), we get a palindrome (5325335235).

The spelling of 1020125034 in words is "one billion, twenty million, one hundred twenty-five thousand, thirty-four".