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23012121401 = 191132790793
BaseRepresentation
bin10101011011101000…
…010001101100111001
32012101202100220000122
4111123220101230321
5334112100341101
614323245343025
71443155542643
oct253350215471
965352326018
1023012121401
119839819455
124562867a75
1322297444a9
141184365893
158ea40651b
hex55ba11b39

23012121401 has 8 divisors (see below), whose sum is σ = 23150290944. Its totient is φ = 22874136480.

The previous prime is 23012121371. The next prime is 23012121409. The reversal of 23012121401 is 10412121032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23012121401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23012121401.

It is not an unprimeable number, because it can be changed into a prime (23012121409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208061 + ... + 298853.

It is an arithmetic number, because the mean of its divisors is an integer number (2893786368).

Almost surely, 223012121401 is an apocalyptic number.

It is an amenable number.

23012121401 is a deficient number, since it is larger than the sum of its proper divisors (138169543).

23012121401 is a wasteful number, since it uses less digits than its factorization.

23012121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92311.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23012121401 its reverse (10412121032), we get a palindrome (33424242433).

The spelling of 23012121401 in words is "twenty-three billion, twelve million, one hundred twenty-one thousand, four hundred one".

Divisors: 1 191 1327 90793 253457 17341463 120482311 23012121401