23051034343155 has 512 divisors, whose sum is σ = 49638361006080. Its totient is φ = 8868044021760.

The previous prime is 23051034343121. The next prime is 23051034343157. The reversal of 23051034343155 is 55134343015032.

It is not a de Polignac number, because 23051034343155 - 2⁶ = 23051034343091 is a prime.

It is a super-2 number, since 2×23051034343155² (a number of 28 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (23051034343157) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 20898489334 + ... + 20898490436.

It is an arithmetic number, because the mean of its divisors is an integer number (96949923840).

Almost surely, 2^{23051034343155} is an apocalyptic number.

23051034343155 is an abundant number, since it is smaller than the sum of its proper divisors (26587326662925).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23051034343155 is a wasteful number, since it uses less digits than its factorization.

23051034343155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491.

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

Adding to 23051034343155 its reverse (55134343015032), we get a palindrome (78185377358187).

The spelling of 23051034343155 in words is "twenty-three trillion, fifty-one billion, thirty-four million, three hundred forty-three thousand, one hundred fifty-five".