1011015240155 has 16 divisors (see below), whose sum is σ = 1284611379264. Its totient is φ = 761218821120.

The previous prime is 1011015240149. The next prime is 1011015240161. The reversal of 1011015240155 is 5510425101101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1011015240149) and next prime (1011015240161).

It is not a de Polignac number, because 1011015240155 - 2⁴ = 1011015240139 is a prime.

It is a Duffinian number.

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, 5215010 + ... + 5405400.

It is an arithmetic number, because the mean of its divisors is an integer number (80288211204).

Almost surely, 2^{1011015240155} is an apocalyptic number.

1011015240155 is a deficient number, since it is larger than the sum of its proper divisors (273596139109).

1011015240155 is a wasteful number, since it uses less digits than its factorization.

1011015240155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252886.

The product of its (nonzero) digits is 1000, while the sum is 26.

The spelling of 1011015240155 in words is "one trillion, eleven billion, fifteen million, two hundred forty thousand, one hundred fifty-five".