1020154235355 has 24 divisors (see below), whose sum is σ = 1771069716000. Its totient is φ = 543219989760.

The previous prime is 1020154235239. The next prime is 1020154235377. The reversal of 1020154235355 is 5535324510201.

1020154235355 is a `hidden beast` number, since 1 + 0 + 20 + 1 + 54 + 235 + 355 = 666.

It is not a de Polignac number, because 1020154235355 - 2¹³ = 1020154227163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17935230 + ... + 17992019.

It is an arithmetic number, because the mean of its divisors is an integer number (73794571500).

Almost surely, 2^{1020154235355} is an apocalyptic number.

1020154235355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020154235355 is a deficient number, since it is larger than the sum of its proper divisors (750915480645).

1020154235355 is a wasteful number, since it uses less digits than its factorization.

1020154235355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35927891 (or 35927888 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 1020154235355 its reverse (5535324510201), we get a palindrome (6555478745556).

The spelling of 1020154235355 in words is "one trillion, twenty billion, one hundred fifty-four million, two hundred thirty-five thousand, three hundred fifty-five".