1025120101 has 8 divisors (see below), whose sum is σ = 1064390400. Its totient is φ = 986111280.

The previous prime is 1025120087. The next prime is 1025120137. The reversal of 1025120101 is 1010215201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025120101 - 2⁷ = 1025119973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025120141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57361 + ... + 73078.

It is an arithmetic number, because the mean of its divisors is an integer number (133048800).

Almost surely, 2^1025120101 is an apocalyptic number.

It is an amenable number.

1025120101 is a deficient number, since it is larger than the sum of its proper divisors (39270299).

1025120101 is a wasteful number, since it uses less digits than its factorization.

1025120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130739.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1025120101 is about 32017.4967947215. The cubic root of 1025120101 is about 1008.3042161086.

Adding to 1025120101 its reverse (1010215201), we get a palindrome (2035335302).

The spelling of 1025120101 in words is "one billion, twenty-five million, one hundred twenty thousand, one hundred one".