1020125430 has 24 divisors (see below), whose sum is σ = 2652326352. Its totient is φ = 272033424.

The previous prime is 1020125423. The next prime is 1020125437. The reversal of 1020125430 is 345210201.

1020125430 is a `hidden beast` number, since 10 + 201 + 25 + 430 = 666.

It is an interprime number because it is at equal distance from previous prime (1020125423) and next prime (1020125437).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020125437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5667274 + ... + 5667453.

It is an arithmetic number, because the mean of its divisors is an integer number (110513598).

Almost surely, 2^1020125430 is an apocalyptic number.

1020125430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020125430 is an abundant number, since it is smaller than the sum of its proper divisors (1632200922).

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

1020125430 is a wasteful number, since it uses less digits than its factorization.

1020125430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11334740 (or 11334737 counting only the distinct ones).

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

The square root of 1020125430 is about 31939.4024677983. The cubic root of 1020125430 is about 1006.6639695311.

Adding to 1020125430 its reverse (345210201), we get a palindrome (1365335631).

The spelling of 1020125430 in words is "one billion, twenty million, one hundred twenty-five thousand, four hundred thirty".