1020251140101 has 16 divisors (see below), whose sum is σ = 1511499163200. Its totient is φ = 680160230064.

The previous prime is 1020251140087. The next prime is 1020251140141. The reversal of 1020251140101 is 1010411520201.

1020251140101 is a `hidden beast` number, since 10 + 2 + 0 + 2 + 511 + 40 + 101 = 666.

1020251140101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020251140101 - 2²² = 1020246945797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020251140141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4014715 + ... + 4261271.

It is an arithmetic number, because the mean of its divisors is an integer number (94468697700).

Almost surely, 2^{1020251140101} is an apocalyptic number.

It is an amenable number.

1020251140101 is a deficient number, since it is larger than the sum of its proper divisors (491248023099).

1020251140101 is a wasteful number, since it uses less digits than its factorization.

1020251140101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399825 (or 399819 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 1020251140101 its reverse (1010411520201), we get a palindrome (2030662660302).

The spelling of 1020251140101 in words is "one trillion, twenty billion, two hundred fifty-one million, one hundred forty thousand, one hundred one".