2001030125155 has 4 divisors (see below), whose sum is σ = 2401236150192. Its totient is φ = 1600824100120.

The previous prime is 2001030125141. The next prime is 2001030125179. The reversal of 2001030125155 is 5515210301002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2001030125155 - 2¹¹ = 2001030123107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200103012511 + ... + 200103012520.

It is an arithmetic number, because the mean of its divisors is an integer number (600309037548).

Almost surely, 2^{2001030125155} is an apocalyptic number.

2001030125155 is a deficient number, since it is larger than the sum of its proper divisors (400206025037).

2001030125155 is an equidigital number, since it uses as much as digits as its factorization.

2001030125155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400206025036.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 2001030125155 its reverse (5515210301002), we get a palindrome (7516240426157).

The spelling of 2001030125155 in words is "two trillion, one billion, thirty million, one hundred twenty-five thousand, one hundred fifty-five".