1020134251155 has 8 divisors (see below), whose sum is σ = 1632214801872. Its totient is φ = 544071600608.

The previous prime is 1020134251117. The next prime is 1020134251217. The reversal of 1020134251155 is 5511524310201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020134251155 - 2⁹ = 1020134250643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34004475024 + ... + 34004475053.

It is an arithmetic number, because the mean of its divisors is an integer number (204026850234).

Almost surely, 2^{1020134251155} is an apocalyptic number.

1020134251155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020134251155 is a deficient number, since it is larger than the sum of its proper divisors (612080550717).

1020134251155 is an equidigital number, since it uses as much as digits as its factorization.

1020134251155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68008950085.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 1020134251155 its reverse (5511524310201), we get a palindrome (6531658561356).

The spelling of 1020134251155 in words is "one trillion, twenty billion, one hundred thirty-four million, two hundred fifty-one thousand, one hundred fifty-five".