1260101025 has 72 divisors (see below), whose sum is σ = 2328566240. Its totient is φ = 651006720.

The previous prime is 1260101021. The next prime is 1260101027. The reversal of 1260101025 is 5201010621.

It is not a de Polignac number, because 1260101025 - 2² = 1260101021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1260100989 and 1260101007.

It is not an unprimeable number, because it can be changed into a prime (1260101021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1344357 + ... + 1345293.

Almost surely, 2^1260101025 is an apocalyptic number.

1260101025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1260101025 is a deficient number, since it is larger than the sum of its proper divisors (1068465215).

1260101025 is a wasteful number, since it uses less digits than its factorization.

1260101025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1260101025 is about 35497.9016985511. The cubic root of 1260101025 is about 1080.1111639691. Note that the first 4 decimals are identical.

Adding to 1260101025 its reverse (5201010621), we get a palindrome (6461111646).

The spelling of 1260101025 in words is "one billion, two hundred sixty million, one hundred one thousand, twenty-five".