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23131402020001 = 1119155277128007
BaseRepresentation
bin1010100001001101100110…
…00000000010010010100001
310000220100012011211000121101
411100212303000002102201
511012441102404120001
6121110230330554401
74605121464021142
oct520466300022241
9100810164730541
1023131402020001
117408a77451260
12271702b898a01
13cba3882c34a2
1459d7cc8d9ac9
152a1a7a581a01
hex1509b30024a1

23131402020001 has 16 divisors (see below), whose sum is σ = 26564089973760. Its totient is φ = 19920495808080.

The previous prime is 23131402019951. The next prime is 23131402020017. The reversal of 23131402020001 is 10002020413132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23131402020001 - 211 = 23131402017953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131402020091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318861 + ... + 6809146.

It is an arithmetic number, because the mean of its divisors is an integer number (1660255623360).

Almost surely, 223131402020001 is an apocalyptic number.

It is an amenable number.

23131402020001 is a deficient number, since it is larger than the sum of its proper divisors (3432687953759).

23131402020001 is a wasteful number, since it uses less digits than its factorization.

23131402020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143564.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23131402020001 its reverse (10002020413132), we get a palindrome (33133422433133).

The spelling of 23131402020001 in words is "twenty-three trillion, one hundred thirty-one billion, four hundred two million, twenty thousand, one".

Divisors: 1 11 19 209 15527 170797 295013 3245143 7128007 78408077 135432133 1489753463 110676564689 1217442211579 2102854729091 23131402020001