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130220011031 = 1111838182821
BaseRepresentation
bin111100101000110110…
…1111010111000010111
3110110010020220222000112
41321101231322320113
54113142310323111
6135453334433235
712256654554635
oct1712155727027
9413106828015
10130220011031
115025388a730
12212a250281b
13c383647286
1464347ba355
1535c2321e8b
hex1e51b7ae17

130220011031 has 4 divisors (see below), whose sum is σ = 142058193864. Its totient is φ = 118381828200.

The previous prime is 130220010997. The next prime is 130220011039. The reversal of 130220011031 is 130110022031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130220011031 - 218 = 130219748887 is a prime.

It is a super-2 number, since 2×1302200110312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130220010997 and 130220011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130220011039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5919091400 + ... + 5919091421.

It is an arithmetic number, because the mean of its divisors is an integer number (35514548466).

Almost surely, 2130220011031 is an apocalyptic number.

130220011031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130220011031 is a deficient number, since it is larger than the sum of its proper divisors (11838182833).

130220011031 is a wasteful number, since it uses less digits than its factorization.

130220011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11838182832.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 130220011031 its reverse (130110022031), we get a palindrome (260330033062).

The spelling of 130220011031 in words is "one hundred thirty billion, two hundred twenty million, eleven thousand, thirty-one".

Divisors: 1 11 11838182821 130220011031