1300121025 has 24 divisors (see below), whose sum is σ = 2456610624. Its totient is φ = 594340800.

The previous prime is 1300120979. The next prime is 1300121033. The reversal of 1300121025 is 5201210031.

It is not a de Polignac number, because 1300121025 - 2¹⁷ = 1299989953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1300120995 and 1300121013.

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, 1237686 + ... + 1238735.

It is an arithmetic number, because the mean of its divisors is an integer number (102358776).

Almost surely, 2^1300121025 is an apocalyptic number.

1300121025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300121025 is a deficient number, since it is larger than the sum of its proper divisors (1156489599).

1300121025 is a wasteful number, since it uses less digits than its factorization.

1300121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476441 (or 2476436 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1300121025 is about 36057.1910303618. The cubic root of 1300121025 is about 1091.4267501701.

Adding to 1300121025 its reverse (5201210031), we get a palindrome (6501331056).

The spelling of 1300121025 in words is "one billion, three hundred million, one hundred twenty-one thousand, twenty-five".