1020240204155 has 16 divisors (see below), whose sum is σ = 1273580560800. Its totient is φ = 783645085440.

The previous prime is 1020240204143. The next prime is 1020240204173. The reversal of 1020240204155 is 5514020420201.

It is not a de Polignac number, because 1020240204155 - 2³⁶ = 951520727419 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19628066 + ... + 19679975.

It is an arithmetic number, because the mean of its divisors is an integer number (79598785050).

Almost surely, 2^{1020240204155} is an apocalyptic number.

1020240204155 is a deficient number, since it is larger than the sum of its proper divisors (253340356645).

1020240204155 is a wasteful number, since it uses less digits than its factorization.

1020240204155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39308254.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 1020240204155 its reverse (5514020420201), we get a palindrome (6534260624356).

The spelling of 1020240204155 in words is "one trillion, twenty billion, two hundred forty million, two hundred four thousand, one hundred fifty-five".