20031334145355 has 128 divisors (see below), whose sum is σ = 36157680599040. Its totient is φ = 9402778183680.

The previous prime is 20031334145341. The next prime is 20031334145399. The reversal of 20031334145355 is 55354143313002.

It is not a de Polignac number, because 20031334145355 - 2⁵ = 20031334145323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 122577441 + ... + 122740749.

It is an arithmetic number, because the mean of its divisors is an integer number (282481879680).

Almost surely, 2^{20031334145355} is an apocalyptic number.

20031334145355 is a deficient number, since it is larger than the sum of its proper divisors (16126346453685).

20031334145355 is a wasteful number, since it uses less digits than its factorization.

20031334145355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163661.

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 20031334145355 its reverse (55354143313002), we get a palindrome (75385477458357).

The spelling of 20031334145355 in words is "twenty trillion, thirty-one billion, three hundred thirty-four million, one hundred forty-five thousand, three hundred fifty-five".