1025124021101 has 4 divisors (see below), whose sum is σ = 1025322271104. Its totient is φ = 1024925771100.

The previous prime is 1025124021091. The next prime is 1025124021107. The reversal of 1025124021101 is 1011204215201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1025124021101 - 2⁶ = 1025124021037 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 (1025124021107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99117245 + ... + 99127586.

It is an arithmetic number, because the mean of its divisors is an integer number (256330567776).

Almost surely, 2^{1025124021101} is an apocalyptic number.

It is an amenable number.

1025124021101 is a deficient number, since it is larger than the sum of its proper divisors (198250003).

1025124021101 is an equidigital number, since it uses as much as digits as its factorization.

1025124021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198250002.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 1025124021101 its reverse (1011204215201), we get a palindrome (2036328236302).

The spelling of 1025124021101 in words is "one trillion, twenty-five billion, one hundred twenty-four million, twenty-one thousand, one hundred one".